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 5930-01-332-2047
NSN 5915-00-577-1501
NSN 5910-01-009-3157
NSN 5998-00-005-6908
NSN 6135-00-182-7008
NSN 5855-01-007-9541
NSN 5985-01-112-9864
NSN 5985-01-023-1568
NSN 6685-01-541-1798
NSN 5999-01-469-2748
NSN 4140-00-433-9571
NSN 2925-01-602-1975