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 6610-01-389-3082
NSN 4140-00-597-5260
NSN 6130-00-639-0666
NSN 5990-01-193-0487
NSN 6110-01-392-6084
NSN 6610-01-454-5552
NSN 6150-01-199-8526
NSN 5855-00-962-5792
NSN 5960-00-474-0095
NSN 6220-01-415-5698
NSN 6320-00-070-4544
NSN 6145-01-154-9606