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 6110-01-400-4207
NSN 6135-01-113-1507
NSN 6650-00-344-7662
NSN 5999-01-197-3216
NSN 5905-00-161-4047
NSN 5998-00-051-9605
NSN 6130-01-215-6382
NSN 5975-00-837-3293
NSN 5835-01-442-6482
NSN 6110-01-604-2702
NSN 5975-00-263-3379
NSN 6610-00-540-8911