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 6150-01-509-2787
NSN 5999-00-249-2830
NSN 6105-01-095-2092
NSN 6320-01-384-7079
NSN 5925-01-278-8188
NSN 6645-01-140-0868
NSN 6610-01-288-6103
NSN 5945-01-082-9535
NSN 6145-00-879-4739
NSN 5990-00-852-2369
NSN 5905-01-271-2127
NSN 5935-01-547-7055