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 6135-00-062-5080
NSN 5960-01-505-2426
NSN 5999-01-437-5176
NSN 6135-00-958-7981
NSN 5855-01-651-7129
NSN 6130-01-246-3310
NSN 6610-01-027-8736
NSN 6105-00-392-2917
NSN 5975-01-506-9318
NSN 5960-00-139-1961
NSN 5950-00-465-1266
NSN 5920-01-458-5224