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 5965-01-099-8745
NSN 5965-01-357-7595
NSN 5915-01-064-3136
NSN 5945-00-194-1526
NSN 6240-00-928-2236
NSN 6220-00-759-0094
NSN 5998-00-993-6806
NSN 6320-01-397-9995
NSN 6110-00-939-7065
NSN 5915-01-633-9845
NSN 4140-01-619-2295
NSN 6620-00-218-4959