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 5920-01-510-2784
NSN 2925-01-523-3607
NSN 6610-01-183-4470
NSN 6130-00-202-4688
NSN 5985-00-147-9452
NSN 6130-00-106-9708
NSN 5975-00-061-7035
NSN 6130-01-381-5671
NSN 5920-01-420-5768
NSN 5990-01-316-6344
NSN 5920-01-025-1618
NSN 5835-00-807-5632