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 6150-00-221-6684
NSN 5965-01-531-7758
NSN 5855-01-631-8430
NSN 6650-01-282-5805
NSN 6220-01-612-6647
NSN 5965-01-007-1963
NSN 5996-00-857-9810
NSN 6145-01-105-4583
NSN 7035-00-275-5604
NSN 5960-01-089-1368
NSN 2925-01-316-7487
NSN 6110-01-364-9779