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 5965-00-558-3684
NSN 5905-01-340-9844
NSN 7035-00-631-3782
NSN 6620-01-122-0238
NSN 6220-01-016-4888
NSN 6685-01-170-2578
NSN 7035-00-500-7839
NSN 6320-01-365-2701
NSN 5910-01-082-9270
NSN 5935-00-252-3008
NSN 2925-01-079-6229
NSN 6645-01-320-4138