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 5945-01-299-0391
NSN 5835-01-131-2027
NSN 5930-01-169-1073
NSN 6105-01-633-8975
NSN 4140-01-094-1621
NSN 5910-00-189-7516
NSN 5920-00-694-0483
NSN 5999-01-415-3897
NSN 5920-01-418-0863
NSN 6620-01-307-0311
NSN 5945-00-279-3223
NSN 5910-01-620-8029