Cam and Groove Adapter Plug Body Material 316 Stainless Steel Type A Coupling Size 4 in Male Connection Type NPT Hose Fitting Size 4 in FNPT Max Working Pressure @ 70 F 100 psi Plug Outside Dia 4 45/64 in Overall Length 3 7/32 in Includes Locking Arm No Thread Size 3 in-8 Plug Length 2 5/64 in