Fitting...
SAE-AS1035/MS24402/AN824 series tee, flared tube fittings are available in different materials, tube outer diameters and thread sizes in inches. AN824 series tee fittings are superseded by the respective fittings of SAE-AS1035 series (SAE International, Standard SAE AS1035, FITTING, TEE, STANDARD AND REDUCER, FLARED).
The following Code Letters after the AS1035 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, AS1035D fittings indicate that these are made from Aluminum Alloy.
The remaining part in the fitting Part Number indicates dimensions i.e. the tubing outer diameter (O.D.) and the thread of the fitting (in inches).
For example, AS1035D060606 fitting is made from Aluminum Alloy with a tubing outer diameter (O.D.) 3/8" and a 0.5625-18 UNJF thread. The corresponding fitting in AN824 series would be AN824-6D.