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 5915-00-409-5066
NSN 5935-00-190-5796
NSN 6220-01-519-2252
NSN 6110-01-087-7695
NSN 5945-00-256-3256
NSN 5998-01-076-6581
NSN 6645-01-295-3179
NSN 6150-01-297-5110
NSN 6610-00-141-7000
NSN 5920-01-481-7931
NSN 6110-00-636-1234
NSN 6105-00-087-0402