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 5975-01-201-5497
NSN 5915-01-034-8137
NSN 6320-00-977-3930
NSN 5998-01-309-5886
NSN 5920-01-565-1904
NSN 5945-00-240-7869
NSN 5999-00-715-8991
NSN 5996-01-525-7628
NSN 7035-01-438-2108
NSN 6220-01-382-2696
NSN 5905-00-110-1650
NSN 6650-01-148-1841