NAS1922/NAS1924 series clamps are light-weight, aircraft application clamps from 300-series stainless steel available with either a 1/4" round slotted screw or a 1/4" slotted hex-head screw. 

NAS1922/NAS1924 series clamps are included as part of our own branded (AVIATIONEU NEW ERA) product lines. They are available in different sizes (NAS1924 clamps are available in sizes 48 & above). Both screw styles can be supplied with optional lock wire hole for tamper resistance. Black Oxide coated band versions (designated by the letter "L" in the part number) are also offered for increased wear resistance.

The following designators in the product reference number (SKU) indicate the different versions:

-1 Clamp with round slotted screw

-3 Clamp with slotted hex-head screw

-1H Clamp with round slotted screw & lock wire hole

-3H Clamp with slotted hex-head screw & lock wire hole

NAS1922/NAS1924 series clamps are sold in pieces or packs of specified number of pieces indicated after the letters "PK" in the product reference number (SKU).

Please refer to the attached documentation of the effective diameter range for different part numbers.

Hoses and fittings most suited to naval and marine applications are included in this listing. They are offered by DANFOSS EATON AEROQUIP® brand and other manufacturers, such as HYDRASEARCH or REPUBLIC BRASS SALES. Made from different materials & reinforcements they are available in different internal tube diameters (I.D.) in inches and lengths in feet. Depending on the hose, they can be used within their maximum operating pressure with a range of fluids (e.g. gasoline, crude, fuel and lubricating oils, air, water or hydraulic fluids) and conform to different Military specifications mentioned below. 

MIL-DTL-3992 Air brake hose 

MIL-DTL-8794 Medium-pressure wire-braid hose 

MIL-DTL-13444 Rubber fuel and oil hose 

MIL-DTL-13531 Rubber hydraulic hose 

MIL-DTL-52471 Rubber hydraulic hose 

MIL-H-24135 Wire-reinforced rubber hose 

MIL-H-24595 Wire-reinforced rubber hose 

MIL-H-24136 Fiber-reinforced rubber hose 

For additional information please consult the supplied documentation or contact us.

EATON HANSEN HA 15000  Series couplings, now part of DANFOSS product portfolio,  are general purpose hydraulic and fluid transfer couplings conforming to the dimensional requirements of ISO 7241-1 Series A. Body sizes are 1/4", 3/8", 1/2", 3/4" and 1".

Standard Materials used in their manufacturing include:

• Zinc-plated steel construction

• Stainless steel springs, balls and retaining rings

• Buna-N (Nitrile) seals

Product Features:

• Ball lock

• Manual connect, disconnect

• Poppet valving

• Slim profile

• Zinc plated steel construction

• NPTF and BSPP end connections

• Available push-to-connect socket designed for bulkhead mounting (1/2" body size only)

Rated Pressure in PSI / BAR per Body Size

1/4" - 4,568 / 315

 3/8" - 4,568 / 315

 1/2" - 3,625 / 250

 3/4" - 3,625 / 250

 1" - 2,900 / 200

For additional information please refer to the supplied documentation or contact us.

Note: Special Order items. Non-Cancellable/Non-Returnable Upon Order Placement (NCNR).

The  Parker Aerospace (Stratoflex Products Division) offers a broad array of PTFE, rubber and metal hose and hose assemblies, hose fittings, rigid tube assemblies, couplings, quick disconnects, swivel joints, fuel break-away valves, hydraulic fuses, and flow regulators, and specialty fittings including permanently swaged and welded fittings suitable for virtually any aerospace application. 676 Series are straight fittings  for use with Stratoflex 156 hoses. They come in different outside diameters (OD) and thread sizes in inches. Please refer to the attached Stratoflex catalog for offered hoses and fittings or contact us.

The EATON AEROQUIP AE102 Aerospace  Firesleeve was specially developed to meet the fire resistance requirements of FAA TSO C53a or TSO-C75. This firesleeve can be indentified by its orange colored outer surface.  It can be used for all fuel, oil, hydraulic, fire extinguisher & propeller feathering lines for "Fire-proof"(*)  hose lines functioning effectively within a continuous operating temperature range of -65F to +450F (-54C to +232C). It is denser and more tightly woven and has more fiberglass than most of the competition. Even the thickness of the protective silicone is better. Available in different internal diameters in inches. Sold by the foot.

The EATON AEROQUIP AE102 can be used with EATON AEROQUIP hoses and 900591B clamps to secure firesleeve material on each end over the basic hose assembly. Please refer to chart for correct size or contact us for additional information. 

(*) Conforming with FAA requirements, "Fire-resistant"hose  lines must withstand a 5-minute exposure under specified flow conditions without failure. "Fire-proof" hose lines must withstand a direct flame for 15 minutes.

EATON AEROQUIP® brand name represents quality and innovation for aerospace and other industrial applications with a wide range of hoses, fittings, couplings and connectors available to cover application requirements. Following the acquisition of Eaton’s hydraulics business by DANFOSS, EATON AEROQUIP® products form now part of DANFOSS product portfolio.

High performance and durability DANFOSS EATON AEROQUIP® reusable and field attachable fittings allow users to make their own assemblies, come in different types, materials (B Brass, C Stainless steel, D Aluminum alloy, S Steel) sizes and configurations. They include:

Aluminum Crimp Fittings - Improved appearance, lightweight and easy to use, one-piece design for improved flow, available in swivel and non-swivel, eliminatie two leak (brazed joints).

EZ Clip Fittings - Designed for assembly with Eaton multi-refrigerant hoses FBZ0600, FBZ0800, & FBZ1000. It's vibration & impulse tested connection exceeds SAE J3062 and J2064.

High Pressure Fittings - High performance & durability fittings engineered to extend hose assembly life.

Air Conditioning (A/C) Fittings - Nickel plated for corrosion resistance. Designed to pair with Aeroquip’s stainless braided A/C hoses. Complete with refrigerant charge ports for selected positioning. Feature female O-ring pilot terminal ends for fit with the majority of A/C components and an O-ring ferrule to ensure a superior seal.

Aluminum Fittings - Designed for performance applications. Fit both AEROQUIP® Stainless Steel Racing and Startlite hoses for use interchangeably between the two hose types. Compression style preventing damage to the inside of the hose’s inner tube. Easier to install. Electroless nickel plating, red/blue and black anodized finish. One-piece design for improved flow. Eliminate two potential leak points (brazed joints). Swivel and non-swivel styles available. 

Steel Fittings - Teflon® hose fittings featuring a swivel body for ease of installation in the hose assembly. Uniquely designed to handle the pressures, temperatures, and fluids. 

Aluminum SOCKETLESS™ Fittings - Designed for use with AEROQUIP® socketless hose. One-piece design, improved appearance, electroless nickel plating or red/blue anodized finish, easy to assemble slipping the hose onto the fitting (no wrench and clamp required), allows for improved flow, eliminates two potential leak points (brazed joints)

For additional information please consult the supplied documentation or contact us.

EATON AEROQUIP® brand name represents quality and innovation for aerospace and other industrial applications with a wide range of hoses, fittings, couplings and connectors available to cover application requirements. Following the acquisition of Eaton’s hydraulics business by DANFOSS, EATON AEROQUIP® products form now part of DANFOSS product portfolio.

DANFOSS EATON AEROQUIP® FD45 Series quick disconnect couplings are  general purpose industrial interchange couplings offered in different sizes, materials, port  and multiple valved and non-valved configurations. They are replaced by EATON Hansen HK 1-8 Series couplings which set the industry standard for ISO B Couplings.

They feature a rugged PUSH-PULL design ball latch mechanism allowing quick and easy connection and disconnection of hose lines. Their automatic self-sealing poppet valves provide excellent high and low pressure sealing. Standard seal materials include Buna-N, EPR and Viton. Standard body materials Include:

- High resistance carbon steel with zinc trivalent chromate plating (Brass poppet guide in –02 size)

- Brass with stainless steel springs and balls for greater corrosion resistance in rugged applications and fluid compatibility where stainless steel is cannot be used

- 303/304 Stainless Steel for excellent corrosion resistance in rugged applications and fluid compatibility. 

The FD45 series couplings meet requirements to ISO standard 7241/1 Series B Interchange.

For additional information please refer to the supplied documentation or contact us.

Note: Special Order items. Non-Cancellable/Non-Returnable Upon Order Placement (NCNR). Minimum Order Quantities & long lead times usually apply.

BAND-IT Junior® series smooth ID hose clamps come in a wide choice of widths, thicknesses and inside diameters in Imperial and Metric systems. They are made from different materials such as 201 austenitic chromium-nickel-manganese Stainless Steel, 316 Stainless Steel or Galvanized Carbon Steel (GCS). With their leak resistant design BAND-IT JS® clamps out-perform the other common clamping methods of hose sleeve clamping. They reduce the risk of leaks especially when used on thin walled hoses, ensuring that hose sleeving stays in place through the life of the sleeve. Their low profile buckle design reduces the clearance needed around the hose and has no sharp edges or tail that could cause injuries. Available for hose assemblies up to 8" outside diameter.

BAND-IT Junior® clamps are also offered as preformed clamps used in a wide array of agricultural and industrial applications. Preformed clamps are  made from Alloy 625, a nickel-chromium-molybdenum alloy known for its high strength, high toughness and excellent corrosion resistance. They are vibration resistant and require no hammering or crimping to complete installation. Clamps automatically lock in place under full tension in one simple level movement of the clamp tool(*).

BAND-IT JS® Clamp Features:

Vibration resistant lip lock design. No hammering or crimping

Unique buckle nest and smooth ID design reduces leak paths

Double wrapped steel bands for additional strength

Various materials for corrosive environments

Sold in packages with specified number of clamps per package indicated after the letters "PKG" in the product reference number (SKU).

For more information please refer to the product specifications or contact us.

(*) Note: BAND-IT Junior® Preformed Clamps should be installed using BAND-IT C001 Tool and J001 Junior® Adapter. 3/8" clamps can also be installed using the BAND-IT J020 POK-IT Tool.

AVIATIONEU NEW ERA plain banjo fittings are intended for use in hydraulic pipes in automotive fuel, oil and hydraulic systems. They are available from different materials, mild steel, EN 1AL(free cutting steel), 11SMnPb30, EN 8, stainless steel 202 & 304. Sourced by certified manufacturers these banjo fittings are competitively priced and offered in different Metric sizes (M10x5/16", M12x5/16", M14x5/16", M14x3/8", M16x3/8", M18x3/8", M18x1/2") and different surface treatments (clear /yellow zinc plated, olive green zinc plated, dacromet). Sold by the piece (pc.) with Minimum Order Quantity (MOQ) 1000 pcs.  Appearing price is for reference only per pc. Please contact us for a quotation.

The  PARKER HANNIFIN (Stratoflex Products Division) offers a broad array of PTFE, rubber and metal hose and hose assemblies in different outside diameters (OD), hose fittings, rigid tube assemblies, couplings, quick disconnects, swivel joints, fuel break-away valves, hydraulic fuses, and flow regulators, and specialty fittings including permanently swaged and welded fittings suitable for virtually any aerospace application. 

PARKER HANNIFIN Stratoflex rubber and PTFE hoses with various reinforcements and covers are briefly presented in the Product Description section with reference to their features and specifications. Offered in different sizes (tube and hose ODs) in inches and lengths in feet unless otherwise stated. Suitable fittings for use with Stratoflex hoses are separately presented. For additional information please refer to the attached Stratoflex catalogs for offered hoses, fittings and assemblies or contact us.

EATON AEROQUIP® brand name represents quality and innovation for aerospace and other industrial applications with a wide range of hoses, fittings, couplings and connectors available to cover application requirements. Eaton’s hydraulics were acquired by DANFOSS and form part of DANFOSS product portfolio.

DANFOSS EATON AEROQUIP® AE246/AE446/AE546/AE846 Series Hoses are based on AE246 advanced technology designed, tested and proved high pressure 3000 psi PTFE hose with Hi-Pac®braid reinforcement containing densely packed small diameter wires braided over a minimum thickness Teflon tube. This reinforcement offers up to 50% lighter in weight while the wires absorb stress more uniformly resulting in a stronger wire braid with less metal. Available in different tubing sizes and internal diameters in inches. They meet or exceed AS1339 performance requirements.

The AE546 series hoses feature an integral braided polyester chafe guard (manufactured by braiding polyester yarn onto existing hose styles) while those of  AE246 series come with an integral silicone firesleeve. 

The AE446 and AE846 Series hoses are AE246 high pressure teflon hoses with an integral silicone asbestos free fire protection (sleeve), adhering directly onto the hose metal braid and end fittings to form a smooth, tight bond.

Common end fittings used with these hoses include CRES fittings of -3 to -12 thread size, flared (MS33656), flareless (MS33514) or BSP type offered in straight, 45 deg and 90 deg styles.

“Super Gem” Reusable Flared Fittings can also be used with these hoses. They consist of 3 pieces: a socket, sleeve and nipple assembly.Made from corrosion resistant materials elbow fittings are available in standard, 45°, and 90° styles. Mate with AS4395 and AS33514 end connections. These service proven flared fittings provide permanent protection against leakage, even after high temperature aging and pressure impulsing to 250,000 cycles or more. This is due to the separation of the sealing function from the retention function.

The AEROQUIP® hoses are priced and sold by the foot unless otherwise specified. Fittings can be separately purchased in pieces.

For additional information please consult the Product Description section and the supplied documentation.

The EATON AEROQUIP FC300 are AQP elastomer hoses with a blue, abrasion-resistant fabric cover with single wire braid reinforcement over a synthetic rubber inner tube for longer life. The FC300 hoses are designed for high pressure fluid applications such as power steering, hydraulics, air, fuel, lubricating oils, fire resistant hydraulic fluids and other industrial fluids. They are also suitable for biodiesel use up to B20 and max temperature of 212°F (100°C). Available in different internal diameters in inches and for use in different maximum operating pressures (psi). Priced and sold by the foot.

Indicative Applications:

Power steering lines

Hydraulics

Air

Gasoline

Fuel

Lubricating oils

Over the wall air tool

Dot-approved air brake

Max operating pressure is 2250 psi

Operating Temperature Range

-55°F to +302°F (-49°C to +150°C)

Air not to exceed +250°F [+121°C]

Notes: 

(1) The FC300 Hose only works with FC300 steel fittings (to be ordered separately). Easily assembles with a bench vise and/or wrenches.

(2) FC300-32 and FC300-40 hoses DO NOT meet SAE 100R5 pressure with reusable fittings. FC300-32 is rated to 350 psi with crimp fittings. 

EATON AEROQUIP® brand name represents quality and innovation for aerospace and other industrial applications with a wide range of hoses, fittings, couplings and connectors available to cover application requirements. Following the acquisition of Eaton’s hydraulics business by DANFOSS, EATON AEROQUIP® products form now part of DANFOSS product portfolio.

DANFOSS EATON AEROQUIP® 816/8846/8891 series flared hose fittings can be used with DANFOSS EATON AEROQUIP® 601 hoses  and are available in different sizes. The 816 series straight hose fittings and 8891 series 90 Deg. hose fittings both consist of a pre-assembled nut/nipple assembly and an internally threaded hose socket. The size 4 fitting has a cadmium plated steel nut and nipple. Sizes 6, 8 and 10 nuts and nipples, and all sizes of sockets, are anodized aluminum. The 8846 series fittings are 45° hose fittings with swivel flared UNJF threads. They are noted for their outstanding performance as a result of a unique lipseal design concept. During assembly the nipple spur cuts a lip in the tube stock of the hose forming the fluid seal. 

For additional information please consult the supplied documentation or contact us.

Note: DANFOSS EATON AEROQUIP® 816 fittings ARE NOT THE SAME as AN816 fittings. Please specify at the time of ordering.

Nylaflow®, Nylon Tubing is a high-quality pressure tubing, available in several types. Nylaflow® tubes are tough and durable, offering low friction and high flexibility. Offered by different producers, Nylaflow® tubing is suitable for applications that require toughness, resilience, a small bend radius and high burst strength. Nylaflow® tubing offers superior burst strength compared to vinyl, ethylene, and urethane tubing and it is a high performance, long-lasting alternative to copper, rubber, aluminum and other types of plastic tubing. Its high burst rating makes it a common solution pneumatic and hydraulic lines. Nylon has excellent chemical resistance and can withstand exposure to relatively high concentrations of harsh chemicals at elevated temperatures. Its extremely smooth inner surface resists abrasion and wear and makes for a low coefficient of friction. It is often used in corrosive environments because of its excellent resistance to harsh chemicals. 

Nylaflow® tubing comes in different types.

Types T (Thin Wall) and H (Heavy Wall) are the most common Nylaflow general purpose tubing made from type 6/6 nylon. FDA compliant for use in food or beverage handling applications also meeting 3A sanitary standards. The High performance of this Nylon tubing makes it perfect for applications that require durability, resilience, a small bend radius, and high burst strength.

Type LM tubing is a premium high flex tubing available in two types: natural or black, which exhibits improved light stability. Type LM offers excellent chemical resistance and low moisture absorption. Often used in automotive fuel lines, lubrication lines, air lines, and vacuum environments.

Type LP tubing is a low pressure, general purpose type 6 nylon tubing with carbon added for UV stability. 

Nylaflow® nylon tubing is available with custom markings, cut to length and custom packaging. It can be cut with a sharp knife and flared hot or cold. They are odorless, tasteless and noncorrosive.

Typical applications of Nylaflow® tubing include airlines, grease lines, vacuum lines, and hydraulic lines.

AVIATIONEU NEW ERA air relief valves can be used in different industrial applications. They are made from different materials,  EN 1AL (free cutting steel), 1SMnPb30+C or SAE 12L13  and zinc plated. Available in the following sizes:

Metric: M10 x 1 ARV

British Standard Pipe (BSP): 1/8" BSP ARV

U.S. National Pipe Thread (NPT): 1/8" NPT ARV, 1/4" NPT ARV

Sold by the piece (pc.) with Minimum Order Quantity (MOQ) 1000 pcs.  Appearing price is for reference only per pc. Please contact us for a quotation.

SAE-AS5406/AN832 series union tube hydraulic fittings are available as part of our own labelled (AVIATIONEU NEW ERA) product lines in different materials, tube outer diameters and thread sizes in inches. The AN832 series fittings are superseded by the respective fittings of  SAE International standard  SAE-AS5406 series. 

Like their SAE-AS5174/MS24392/AN815 union flared tube counterparts, SAE-AS5406/AN832 series fittings are manufactured from Carbon Steel, Aluminum Alloy, Corrosion Resistant Steel (CRES), Titanium Alloy. The 2 digits after the series code indicate the tubing outer diameter (O.D.)  in inches. The following Material Code Letters in the part numbers indicate the composition of the fitting.

No code letter in part number for Carbon Steel

Code letter “D” for Aluminum Alloy (except 7075-T73)

Code letter “J” for CRES, type 304

Code letter “K” for CRES, type 316

Code letter “S” for CRES, type 347

Code letter “T” for Titanium Alloy 6AL-4V

Code letter “W” for Aluminum Alloy 7075-T73

For example, AS5406D06 union fitting is made from Aluminum Alloy with a tubing outer diameter (O.D.) 3/8". The corresponding union fitting in AN832 series would be AN832-6D.

Depending on their Part Number they are sold in pieces but also in packs a with specified number of fittings indicated after the letters "PK" in the product reference number (SKU).

Non-latching automatic self-sealing and Thread-Lok Quick Disconnect (QD) valved hose couplings are manufactured by the Stratoflex Products Division of Parker Hannifin Corporation.

Automatic couplings are recommended for use with today's advanced precision fluid systems for space flight, aircraft, ground and undersea applications. Stratoflex non-latching automatic self-sealing couplings are designed for use in diverse applications like electronic cooling systems, hydraulic accumulators/cylinders, brake systems, manifolds, vapor cycle and cryogenic systems. Automatic couplings are best utilized where space is limited, and hands off operation is required. Small envelope, high performance and unsurpassed reliability are key features of Stratoflex non-latching couplings. Available in different tube sizes, from sub-miniature to one inch in aluminum alloy, stainless steel, titanium and other exotic materials. They meet SAE Aerospace Standards AS4251,AS5072/1/2/3.

The Parker Stratoflex’s Thread-Lok Quick Disconnect (QD) valved couplings provide a proven solution for fluid conveyance systems  for aerospace and derivative markets when envelope and weight are important and robust performance is critical. Applications range from hydraulic, fuel, and cooling systems to pneumatic, air data systems, landing gears, wheel and brakes hydraulic fluid motors, military ground vehicles and space applications. Their respective Thread-Lok Ground Service Equipment (GSE) Quick Disconnect (QD) couplings are intended for use with fluid conveyance systems providing a robust connection for ground service equipment to the aircraft flight systems. The Thread-Lok QD is used in a wide range of pressure and temperature applications.

They integrate a highly reliable and robust positive locking mechanism to ensure the performance needed in difficult aircraft system environments such as the engine nacelle, landing gear and brake systems, and other QD demanding installations . The Thread-Lok QD couplings can be used in a wide range of pressure and temperature applications while they provide a simple one-hand operation to thread the QD halves together with a visual confirmation of proper and full coupling to improve both time and safety. 

The Thread-Lok QDs incorporate tang and slot design, with QDs engaging and locking in one position when the coupling halves are threaded together and fully connected, providing both visual and touch indication of the fully connected position. They use Parker’s efficient, self-sealing valve design that permits fluid flow with minimum pressure loss and turbulence.

Available in different tube sizes, from ¼ to one inch. Their stainless steel construction meets typical electrical bonding requirements.They meet or exceed MIL-C-25427 and AS1709 specifications.

For additional information please consult the Product Description section, the supplied documentation or contact us.

AN822 90° Flared Tube & Pipe Thread Elbow Fittings are superseded by those of Military Standard MS20822 and these are superseded in turn by SAE-AS5195 standard. These fittings are made from different materials such as carbon steel, aluminum or corrosion resistant steel (stainless steel), sourced from quality manufacturers and offered as part of our own labelled (AVIATIONEU NEW ERA) product lines in different tube outer diameters and NPT thread sizes in inches. The fitting composition is designated by a code letter after the dash number in the part number as follows:

No letter for Carbon Steel

"B" for Copper Alloy

"D" for Aluminum Alloy

"J" for CRES, Class 304

"K" for CRES, Class 316

"S" for CRES, Class 347

"W" for Aluminum Alloy 7075-T73

For additional information please consult the supplied documentation or contact us.

EATON AEROQUIP® brand name represents quality and innovation for aerospace and other industrial applications with a wide range of hoses, fittings, couplings and connectors available to cover application requirements. Following the acquisition of Eaton’s hydraulics business by DANFOSS, EATON AEROQUIP® products form now part of DANFOSS product portfolio. 

DANFOSS EATON AEROQUIP® 491 and 471 hose fittings consist of an AN818 style nut, an externally threaded 37 nipple and an internally threaded hose socket. Fittings of sizes 3 through 6 have nuts and nipples of cadmium plated steel. Nuts and nipples for size 8 and larger are of anodized aluminum. Fittings conform to MS24587. Available in different tube and thread sizes in inches.

For additional information please consult the supplied documentation or contact us.

SAE-AS1034/MS24401/AN821 90° series elbow 90°, flared tube fittings are available as part of our own labelled (AVIATIONEU NEW ERA) product lines in different materials, tube outer diameters and thread sizes in inches.  AN821 and MS24401 series elbow fittings are superseded by the respective elbows of SAE International, standard AS1034 series. These fittings are made from different materials including Carbon Steel, Aluminum Alloy, Corrosion Resistant Steel (CRES), and Titanium Alloy. The 2 digits after the series code indicate the tubing outer diameter (O.D.)  in inches. The following Material Code Letters in the part numbers indicate the composition of the fitting. Finish code “V” in the PN indicates high purity Aluminum coating for “W” or “D” fittings. 

No code letter in part number for Carbon Steel

“D” for Aluminum Alloy (except 7075-T73)

“J” for CRES, type 304

“K” for CRES, type 316

“R” for CRES, type 321

“S” for CRES, type 347

“T” for Titanium Alloy 6AL-4V

“W” for Aluminum Alloy 7075-T73

For example, a 90° elbow fitting with a flared tube 3/8 in. size connection corresponds to PN AS1034D0606 when made from Aluminum Alloy or AS1034W0606 when made from 7075-T73 Aluminum Alloy replacing respective AN821-6D 90° elbow fitting from Anodized Aluminum Alloy with a 37 deg flared tube 3/8 in. connection, and a  UNJF / Class 3A thread of 9/16-18 in. size. AN821 fittings of tube outer diameters  3/4 in. (size 12) and above come with UNJ / Class 3A threads.

Depending on their Part Number they are sold in pieces but also in packs a with specified number of fittings indicated after the letters "PK" in the product reference number (SKU).

Note: In SAE AS standards for new designs, aluminum fittings with material code letter D in their Part or Identifying Number (PIN) are replaced by those with material code letter W for Aluminum Alloy 7075-T73 providing a higher tensile strength. In addition CRES fittings with material code letter S can be used for replacement parts. For new designs use of CRES fittings with material code letter R is recommended for applications requiring higher temperature.