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 5920-00-308-5681
NSN 5999-00-257-9610
NSN 6620-00-366-1365
NSN 5920-01-073-1231
NSN 5945-01-139-1126
NSN 5915-01-650-1733
NSN 6130-01-288-3041
NSN 5996-01-569-4076
NSN 6650-00-433-4929
NSN 6150-01-300-9590
NSN 5910-00-515-3586
NSN 5915-00-966-4661