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 5905-00-370-0326
NSN 5935-00-817-9981
NSN 5998-00-246-6895
NSN 5935-01-412-8664
NSN 6135-01-177-3552
NSN 5998-01-036-2797
NSN 6610-01-080-1041
NSN 5960-00-082-0493
NSN 7035-01-003-9142
NSN 2925-01-161-7440
NSN 6610-00-571-1811
NSN 6220-01-505-9880