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 5910-01-432-6140
NSN 6240-01-252-8850
NSN 5975-00-921-4894
NSN 7035-01-626-7763
NSN 5960-01-601-5565
NSN 5960-00-121-7458
NSN 5960-01-462-6267
NSN 5950-01-176-2692
NSN 5950-01-166-1790
NSN 5910-01-050-8451
NSN 6150-01-397-1922
NSN 6320-01-585-8468