Stainless Steel Quick Coupling C Material:SS304,SS316 Size:1/2" ~ 6" Thread :NPT,BSP,BSPT,DIN2999 Stainless Steel Quick CouplingType - C Type: C – typeSize ... , Nitrile , Viton , Teflon, and SiliconeProduction processInvestment CastSpecifications conformed to MIL-C-27487 (replaced by A-A-59326 already), with are interchangeable ...