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 6610-01-011-5942
NSN 6145-01-356-0655
NSN 6240-01-069-2688
NSN 7035-01-543-3505
NSN 6650-01-643-0534
NSN 5999-01-320-9120
NSN 6130-00-826-8284
NSN 5910-01-612-6594
NSN 5920-00-673-7648
NSN 6650-01-606-5725
NSN 5945-00-540-8178
NSN 5835-01-412-5325