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 5965-00-539-7778
NSN 4140-01-625-6544
NSN 7035-00-188-6674
NSN 6110-01-358-5165
NSN 6320-01-446-8050
NSN 6650-01-267-3223
NSN 5950-01-363-3356
NSN 6150-01-084-9866
NSN 5910-00-288-5979
NSN 6685-01-177-3442
NSN 6620-01-376-3744
NSN 5996-01-487-3733