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 5996-01-421-4761
NSN 6105-01-496-3073
NSN 6240-01-329-4979
NSN 6650-01-501-6008
NSN 5990-00-153-0055
NSN 5950-01-153-7406
NSN 5930-00-195-9428
NSN 5910-01-499-9095
NSN 6645-00-650-3405
NSN 5905-00-004-6114
NSN 6650-01-101-6622
NSN 7035-00-541-8516