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 5990-00-212-4316
NSN 7035-00-193-2269
NSN 6110-00-343-8183
NSN 5855-01-128-1762
NSN 6145-01-417-9630
NSN 4140-01-246-4267
NSN 5998-01-412-3823
NSN 6135-01-098-3020
NSN 6105-00-141-0300
NSN 5960-00-287-4982
NSN 4140-01-113-8886
NSN 5920-01-411-8571