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 4140-00-060-1260
NSN 6650-01-212-1618
NSN 6145-00-762-4845
NSN 5835-01-089-7615
NSN 5935-01-014-9896
NSN 5915-00-525-5753
NSN 6320-01-631-7828
NSN 6110-00-347-7290
NSN 5895-00-269-3848
NSN 5985-01-529-5109
NSN 5965-00-255-3889
NSN 6610-01-043-6229