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 6135-00-539-8088
NSN 5855-01-374-4118
NSN 5935-01-083-5876
NSN 5985-00-205-2922
NSN 2925-00-884-6278
NSN 5998-00-419-6844
NSN 5975-01-391-5963
NSN 6105-00-188-7433
NSN 5965-01-438-0647
NSN 5990-01-411-5930
NSN 6610-01-633-8931
NSN 5965-01-615-0535