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 6320-00-831-2227
NSN 5920-01-477-8400
NSN 6105-01-341-6142
NSN 7035-01-449-1846
NSN 6110-00-706-8661
NSN 6645-01-512-2260
NSN 5999-00-725-0016
NSN 5925-00-592-0881
NSN 5895-00-950-3525
NSN 6685-00-270-3276
NSN 5905-01-390-4298
NSN 5985-01-493-6875