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 5960-01-579-1661
NSN 5990-00-562-8413
NSN 6685-01-525-7586
NSN 6320-01-215-1133
NSN 6105-01-466-9090
NSN 5915-01-169-1594
NSN 5920-00-450-0810
NSN 5855-01-252-5424
NSN 5945-01-461-9953
NSN 5895-01-188-2150
NSN 7035-00-830-1235
NSN 5960-00-584-4553