A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 5998-01-071-3055
NSN 5960-00-435-8335
NSN 5975-01-492-0071
NSN 5960-01-641-3788
NSN 6220-01-467-9141
NSN 5999-01-238-6819
NSN 5985-01-150-7159
NSN 5998-01-431-8643
NSN 5950-01-417-2423
NSN 5910-01-429-4224
NSN 6220-01-167-0516
NSN 6610-00-776-3235