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 4140-01-417-8070
NSN 6110-01-393-0239
NSN 5985-00-390-8837
NSN 6130-01-013-7651
NSN 5855-01-592-3128
NSN 5930-01-058-9383
NSN 2925-01-578-7731
NSN 5925-01-501-7624
NSN 6135-00-557-8874
NSN 6135-01-100-3593
NSN 5910-01-519-3731
NSN 5930-01-455-3465