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 5930-01-012-6973
NSN 6135-01-577-5532
NSN 5835-01-616-6131
NSN 5960-01-430-3911
NSN 5920-00-925-2639
NSN 6130-00-661-0197
NSN 5835-01-399-5820
NSN 5985-01-110-8962
NSN 5920-00-281-0246
NSN 5925-01-077-6316
NSN 4140-01-261-2519
NSN 6220-01-122-2543