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 5915-00-794-0490
NSN 6130-01-476-7643
NSN 2925-00-467-7150
NSN 5990-01-208-1101
NSN 6645-01-023-8724
NSN 5965-01-446-3290
NSN 6620-00-803-1260
NSN 5855-00-179-8588
NSN 5996-01-628-4657
NSN 6620-01-182-6076
NSN 6110-01-136-6852
NSN 4140-01-522-1671