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 5950-00-275-9257
NSN 6685-00-273-8733
NSN 5950-00-581-2999
NSN 6145-01-483-6567
NSN 5895-01-352-5557
NSN 5920-01-571-8027
NSN 4140-01-631-4447
NSN 6685-01-128-3052
NSN 6110-01-456-8466
NSN 5935-01-542-6504
NSN 6145-01-452-1966
NSN 5985-00-208-0572