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 6320-00-676-9387
NSN 5998-00-606-8797
NSN 6220-01-029-0245
NSN 6650-00-818-2741
NSN 6240-00-893-4799
NSN 5910-01-424-1435
NSN 2925-00-906-0421
NSN 5999-01-315-0979
NSN 6320-01-215-2284
NSN 6620-01-345-1336
NSN 5945-00-940-9206
NSN 4140-00-230-4252