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 5895-01-249-8754
NSN 5930-01-653-4095
NSN 5960-00-905-9693
NSN 5905-01-342-5203
NSN 5930-01-646-1252
NSN 5965-00-113-9748
NSN 5915-01-077-1076
NSN 6645-01-504-3394
NSN 5935-01-075-7209
NSN 5915-01-557-9524
NSN 5998-01-364-8105
NSN 6610-01-493-6269