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 5905-00-026-0162
NSN 5945-01-152-2780
NSN 6110-00-039-9553
NSN 6105-01-442-1799
NSN 5945-00-428-3668
NSN 6145-01-014-5209
NSN 4140-01-476-1403
NSN 5835-01-519-3834
NSN 5985-01-005-9080
NSN 5960-01-462-1864
NSN 5925-01-513-9924
NSN 5920-01-281-6466