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 5990-01-378-1444
NSN 5920-00-825-2572
NSN 5996-01-290-0988
NSN 5910-00-925-1748
NSN 6145-01-329-5935
NSN 5930-00-874-7637
NSN 5910-01-533-0832
NSN 5950-01-573-7961
NSN 5990-01-370-7912
NSN 6650-01-479-9024
NSN 6130-01-400-6123
NSN 5996-00-045-8379