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 5920-00-391-6252
NSN 5835-01-384-3206
NSN 5910-01-264-9785
NSN 5950-01-329-4334
NSN 5975-00-753-9409
NSN 6650-01-308-9394
NSN 6620-01-654-7142
NSN 5895-00-451-3096
NSN 5915-01-622-7200
NSN 6320-00-405-2348
NSN 5996-01-069-2915
NSN 5915-01-038-1759