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 5950-01-250-1762
NSN 6130-01-359-1712
NSN 6130-01-568-1417
NSN 6685-00-499-6451
NSN 6110-01-441-9041
NSN 5945-01-485-4245
NSN 6650-01-204-5981
NSN 6220-00-796-1111
NSN 5950-01-580-0598
NSN 7035-01-394-3169
NSN 5975-01-116-5954
NSN 5925-00-410-4822