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 6145-00-024-6683
NSN 6105-01-131-9057
NSN 4140-01-100-1223
NSN 6320-01-420-0340
NSN 5996-00-618-0050
NSN 5999-00-467-9305
NSN 7035-00-546-2560
NSN 5915-01-189-9449
NSN 6130-01-464-3162
NSN 6135-01-100-3593
NSN 5950-00-964-5733
NSN 6620-00-401-8489