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 5996-01-075-5184
NSN 5905-00-862-2900
NSN 5915-00-818-5596
NSN 6320-01-216-1678
NSN 6650-01-336-8197
NSN 7035-01-095-9322
NSN 5905-00-644-6990
NSN 6620-01-628-2620
NSN 6130-00-001-2778
NSN 5975-00-723-0390
NSN 5996-00-369-5299
NSN 6135-01-100-3593