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 5920-01-469-6025
NSN 5965-00-505-2166
NSN 6135-00-377-9165
NSN 5996-00-392-7626
NSN 6105-00-916-5614
NSN 5920-00-038-3990
NSN 5960-00-645-8435
NSN 5999-00-031-0778
NSN 5990-01-164-8673
NSN 6650-00-233-0705
NSN 6320-00-422-9006
NSN 5855-01-248-5725