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 5945-00-175-6997
NSN 5925-01-547-4304
NSN 6240-00-778-7845
NSN 6650-00-116-7023
NSN 5925-01-223-4803
NSN 7035-00-679-9027
NSN 6650-01-506-5636
NSN 5998-00-707-5781
NSN 6145-01-472-3120
NSN 7035-00-476-7178
NSN 6110-00-229-9079
NSN 5920-01-619-7253