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 5895-01-653-3732
NSN 6220-01-269-5263
NSN 6150-01-472-9780
NSN 4140-01-152-2672
NSN 6110-00-156-4307
NSN 5990-01-392-5682
NSN 5855-00-174-3482
NSN 5950-01-612-3762
NSN 6110-01-473-8976
NSN 5905-00-020-3832
NSN 5905-00-147-5226
NSN 5910-00-715-6671