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 6610-01-291-4173
NSN 5945-00-553-3224
NSN 5925-01-099-0373
NSN 5965-01-010-1258
NSN 6150-01-210-0997
NSN 5920-01-039-5393
NSN 5996-00-963-1352
NSN 5905-01-269-3963
NSN 5999-01-399-7254
NSN 6130-01-274-9612
NSN 5945-01-545-6871
NSN 6220-00-239-0302