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 6110-00-312-5414
NSN 5910-00-398-0930
NSN 6135-01-048-0910
NSN 6650-00-944-8925
NSN 6650-01-202-8014
NSN 5935-01-095-3831
NSN 5930-01-274-8943
NSN 5965-01-146-1311
NSN 2925-01-309-5007
NSN 7035-01-166-2473
NSN 6150-01-303-0358
NSN 6620-01-072-1034