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 5965-01-202-1007
NSN 5930-00-466-2819
NSN 5835-01-547-6892
NSN 6620-00-490-3978
NSN 2925-01-476-3224
NSN 6685-01-181-6142
NSN 7035-00-421-8710
NSN 5990-00-783-4560
NSN 5950-01-617-1893
NSN 6130-00-396-1118
NSN 5895-01-077-0107
NSN 4140-01-122-7330