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 2925-01-527-8745
NSN 2925-00-934-8383
NSN 5985-01-043-3214
NSN 6150-01-184-9257
NSN 5925-00-118-2464
NSN 6650-01-602-4345
NSN 5996-01-514-8118
NSN 5910-00-572-4790
NSN 5905-01-574-1648
NSN 7035-01-593-8058
NSN 6645-00-547-4388
NSN 6650-01-459-7155