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 6130-00-578-9783
NSN 5835-01-469-6009
NSN 6650-01-258-5871
NSN 5990-00-446-0518
NSN 7035-01-145-5059
NSN 2925-01-499-8720
NSN 5910-01-633-9963
NSN 6645-01-419-8768
NSN 5999-00-922-8368
NSN 5950-01-368-1793
NSN 6220-00-081-5558
NSN 7035-01-127-9019