Cam and Groove Coupling Socket Body Material 316 Stainless Steel Type B Coupling Size 1 1/2 in Male Connection Type NPT Hose Fitting Size 1 1/2 in MNPT Max Working Pressure @ 70 F 250 psi Socket Inside Diameter 2 1/8 in Gasket Material Nitrile Overall Length 2 19/32 in Includes Locking Arm Yes Thread Size 1-1/2 in -11-1/2