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 7035-00-849-5526
NSN 6135-01-515-2668
NSN 5915-01-503-4246
NSN 5905-01-054-7340
NSN 5915-01-474-8027
NSN 5935-00-918-0478
NSN 5920-01-173-4108
NSN 4140-00-934-8800
NSN 6645-00-491-8963
NSN 5965-01-252-8701
NSN 6150-01-014-4043
NSN 5965-01-519-8274