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 5999-01-202-5319
NSN 6645-00-832-1609
NSN 5935-01-632-1296
NSN 5975-00-067-3368
NSN 5925-01-354-2519
NSN 6150-00-683-5349
NSN 5910-01-122-1498
NSN 2925-00-957-7329
NSN 6240-01-028-6737
NSN 6220-01-567-6956
NSN 5945-01-524-4558
NSN 5935-00-974-8241