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 6685-00-891-4164
NSN 6645-01-291-4175
NSN 5996-01-602-3992
NSN 5945-00-841-4925
NSN 6150-00-026-7902
NSN 6620-00-873-9825
NSN 5905-01-011-3847
NSN 5855-01-100-3272
NSN 6130-01-632-3151
NSN 5935-01-003-6004
NSN 4140-01-420-6817
NSN 5905-01-653-3092