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 6130-01-622-4149
NSN 5985-01-626-6292
NSN 5930-01-474-2871
NSN 5930-01-280-4761
NSN 6645-01-202-7986
NSN 6610-01-067-6591
NSN 5975-01-359-8503
NSN 5990-00-396-8338
NSN 6240-00-467-7295
NSN 6320-01-116-3980
NSN 2925-01-210-6531
NSN 6650-00-361-8222