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 5835-01-565-3411
NSN 5945-01-341-8079
NSN 5905-01-356-8405
NSN 6130-00-500-8477
NSN 6610-00-437-5681
NSN 6650-00-760-1385
NSN 6320-01-554-0901
NSN 6685-01-634-0611
NSN 6220-01-240-4695
NSN 6130-01-392-8347
NSN 6135-01-326-2536
NSN 5915-01-632-5945