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 6240-01-586-9718
NSN 6130-01-123-9041
NSN 5996-01-308-0865
NSN 6220-00-487-4424
NSN 2925-00-779-3410
NSN 5998-01-528-9403
NSN 6220-01-190-6906
NSN 5905-01-634-0595
NSN 5925-00-706-9975
NSN 5945-01-017-5424
NSN 6110-01-633-9660
NSN 5960-01-528-1147