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 6135-01-434-4954
NSN 6610-00-391-7888
NSN 6650-01-540-4402
NSN 4140-01-260-6182
NSN 5855-00-361-0167
NSN 5950-00-502-1142
NSN 5935-01-218-2483
NSN 5905-00-964-7722
NSN 5930-01-412-2010
NSN 6685-01-458-8001
NSN 5950-01-166-8200
NSN 6240-00-483-1338