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 6650-01-594-9915
NSN 5975-01-469-6586
NSN 5925-01-461-8378
NSN 6240-01-476-7935
NSN 5965-01-390-9249
NSN 5975-00-772-8002
NSN 5935-01-149-0159
NSN 5920-01-044-4877
NSN 6130-01-207-9102
NSN 5855-00-832-9341
NSN 5935-01-645-9009
NSN 6220-01-622-5496