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 6130-00-514-1177
NSN 5895-00-464-7583
NSN 5855-00-832-9341
NSN 2925-01-384-4139
NSN 5835-01-174-4276
NSN 6650-01-418-0790
NSN 5945-00-221-6496
NSN 5965-00-281-0319
NSN 5855-00-411-8688
NSN 5855-01-138-4985
NSN 6105-01-388-0394
NSN 5985-01-581-2099