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 6620-00-466-2314
NSN 5835-01-439-0180
NSN 5950-01-336-1784
NSN 5915-01-424-0767
NSN 6240-01-383-1576
NSN 6220-01-130-9294
NSN 6105-00-699-9186
NSN 6110-01-487-5886
NSN 5905-01-327-2712
NSN 5855-01-569-2994
NSN 5975-00-020-6756
NSN 5920-01-068-3135