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 5965-00-592-0812
NSN 5930-00-910-8954
NSN 6240-00-578-6763
NSN 5975-00-771-6691
NSN 6620-01-575-7879
NSN
NSN 5895-01-617-6701
NSN 5960-01-512-0233
NSN 4140-01-024-9414
NSN 5999-01-061-6951
NSN 5960-01-530-0581
NSN 5905-01-141-6633