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 6135-00-967-3112
NSN 5855-00-237-4088
NSN 5990-01-293-4817
NSN 5990-01-045-7754
NSN 4140-00-401-3123
NSN 5855-01-480-8929
NSN 5920-01-634-0250
NSN 6620-01-466-9478
NSN 5930-01-254-5236
NSN 5996-01-230-8671
NSN 5910-01-245-8757
NSN 6150-00-129-9082