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 4140-00-299-6328
NSN 5910-00-203-2119
NSN 6105-00-099-0068
NSN 6135-01-633-8502
NSN 7035-01-357-1251
NSN 6685-00-137-7707
NSN 2925-01-294-4125
NSN 5996-01-217-7980
NSN 5999-01-589-0987
NSN 6650-01-102-3282
NSN 6220-01-429-4626
NSN 5855-01-659-0293