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 6240-01-550-8991
NSN 5985-01-356-4305
NSN 4140-00-063-4183
NSN 5965-01-370-1891
NSN 5915-01-323-5279
NSN 6240-01-198-7004
NSN 5925-01-556-5949
NSN 6150-00-961-1303
NSN 5960-01-004-5483
NSN 6650-01-476-3329
NSN 6105-01-116-6012
NSN 6110-01-641-0015