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 6110-00-221-1868
NSN 4140-01-424-2069
NSN 5910-01-564-7380
NSN 6685-00-148-9729
NSN 6105-01-435-5530
NSN 6110-00-456-2058
NSN 6610-01-309-5361
NSN 2925-00-617-0826
NSN 6110-01-163-6936
NSN 5999-01-265-3091
NSN 5999-00-716-9426
NSN 5990-01-432-4984