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 4140-01-217-0380
NSN 5990-00-518-0684
NSN 5855-01-516-5211
NSN 6145-00-110-2536
NSN 6150-00-233-0820
NSN 6645-00-991-0877
NSN 5920-00-953-5037
NSN 5985-01-348-0082
NSN 6145-01-451-4599
NSN 5985-01-502-9007
NSN 6220-01-358-9975
NSN 5920-00-875-6823