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 5975-00-994-2945
NSN 5996-01-440-9660
NSN 5895-00-119-8600
NSN 6620-00-658-6588
NSN 6685-01-649-9162
NSN 6130-00-241-2460
NSN 6240-01-392-8868
NSN 4140-01-548-8631
NSN 6105-01-085-6002
NSN 6105-01-168-8335
NSN 5965-00-938-8219
NSN 6685-01-400-4192