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 6610-00-900-7685
NSN 6620-01-315-2414
NSN 6650-01-370-5265
NSN 6135-01-397-6564
NSN 6610-01-237-5815
NSN 5855-01-379-9978
NSN 6105-01-264-6511
NSN 5990-01-554-4128
NSN 5975-00-422-2760
NSN 6610-01-325-4784
NSN 6150-00-895-6523
NSN 6150-01-588-1872