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 6645-01-540-0231
NSN 5965-01-652-3339
NSN 6645-01-381-2050
NSN 5935-00-263-3641
NSN 5999-01-535-0789
NSN 5945-00-888-5492
NSN 2925-00-740-7029
NSN 6145-01-044-8800
NSN 5930-01-450-2019
NSN 6650-01-529-6416
NSN 5965-01-136-7970
NSN 6145-00-471-3975