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 4140-01-472-3727
NSN 6130-00-662-8557
NSN 6130-00-222-3907
NSN 5990-01-584-8363
NSN 6145-01-291-0809
NSN 6620-01-038-1031
NSN 5835-00-322-5654
NSN 5985-01-369-0349
NSN 2925-01-320-6512
NSN 6130-01-467-2337
NSN 6145-00-669-6795
NSN 5985-00-506-8036