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 5935-01-052-5907
NSN 5895-01-607-0038
NSN 5855-01-088-8700
NSN 5935-01-234-4606
NSN 6105-01-542-0540
NSN 5975-00-476-5121
NSN 5998-01-467-2032
NSN 6220-01-054-2804
NSN 2925-00-124-5465
NSN 5999-00-299-0840
NSN 6610-01-364-8295
NSN 6220-01-089-7185