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 5935-01-467-7904
NSN 5835-01-222-2437
NSN 5965-00-554-4138
NSN 4140-01-181-4485
NSN 6105-01-415-9913
NSN 5835-01-604-7489
NSN 6145-01-529-6566
NSN 6110-01-418-0199
NSN 5975-00-384-8077
NSN 6110-00-188-9874
NSN 6240-01-476-4658
NSN 6220-01-215-0907