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 2925-01-359-4027
NSN 5905-00-120-0989
NSN 5855-01-268-6468
NSN 6610-01-113-2726
NSN 6650-01-166-0889
NSN 5975-01-657-1834
NSN 6320-01-304-3639
NSN 5950-01-597-2157
NSN 6130-00-649-2802
NSN 6220-01-076-5057
NSN 5999-00-795-8032
NSN 5935-01-383-7573