Cam and Groove Coupling Socket Body Material 316 Stainless Steel Type D Coupling Size 1 1/4 in Female Connection Type NPT Hose Fitting Size 1 1/4 in FNPT Max Working Pressure @ 70 F 250 psi Socket Inside Diameter 1 13/16 in Gasket Material Nitrile Overall Length 2 21/32 in Includes Locking Arm Yes Thread Size 1 1/4 in-11 1/2