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 6620-00-160-0844
NSN 5985-01-020-8259
NSN 5999-01-192-6479
NSN 6685-00-808-6955
NSN 6685-01-511-0052
NSN 5990-00-905-6472
NSN 6650-01-069-4128
NSN 5960-01-009-5983
NSN 7035-01-289-4022
NSN 6685-01-434-2662
NSN 5945-01-400-5928
NSN 5905-00-350-6247