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 5925-01-361-1775
NSN 6105-00-991-1844
NSN 5990-01-242-9653
NSN 6150-00-763-1203
NSN 5905-01-497-9567
NSN 5835-01-521-0298
NSN 6150-01-213-0853
NSN 6610-00-570-0304
NSN 6645-01-364-7330
NSN 6685-00-956-5898
NSN 5998-01-614-9427
NSN 6645-01-512-2034