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 5990-00-840-6571
NSN 7035-01-583-6465
NSN 5999-00-932-7004
NSN 5985-00-615-9766
NSN 6320-00-405-2348
NSN 6650-00-252-2541
NSN 7035-00-104-7613
NSN 5915-01-384-3858
NSN 6220-01-122-7439
NSN 5985-00-838-1557
NSN 6130-00-334-9227
NSN 5998-00-277-7552