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 6610-00-176-5486
NSN 5925-01-438-8076
NSN 6320-01-495-1244
NSN 5999-00-019-5155
NSN 5925-00-256-4884
NSN 6145-01-184-6027
NSN 5920-01-462-2517
NSN 6135-00-752-1589
NSN 6610-01-181-9935
NSN 6685-01-238-1600
NSN 6150-00-228-1587
NSN 6145-01-012-2557