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 6105-00-527-2193
NSN 6220-01-336-2694
NSN 5998-00-699-2514
NSN 5985-01-202-1747
NSN 5960-01-386-3855
NSN 5996-01-400-3558
NSN 5998-00-779-2865
NSN 5999-01-126-7881
NSN 6645-00-805-0066
NSN 6110-00-163-6223
NSN 5990-01-321-2997
NSN 6135-01-304-6423