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 5910-01-450-5573
NSN 6150-01-595-9128
NSN 5925-01-478-7743
NSN 6110-00-024-1051
NSN 4140-01-235-1757
NSN 5895-01-058-3634
NSN 6240-00-997-4559
NSN 6610-01-287-2757
NSN 6110-01-441-1623
NSN 6145-01-442-5107
NSN 6145-00-900-1656
NSN 6320-01-232-4664