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 5990-00-373-9787
NSN 2925-01-163-6716
NSN 5910-01-541-3785
NSN 7035-01-013-0934
NSN 6220-01-187-1028
NSN 6610-00-781-4198
NSN 5930-01-205-0489
NSN 5990-01-546-1649
NSN 5935-01-641-2912
NSN 5996-01-299-2122
NSN 5996-01-024-9976
NSN 5835-01-185-1102