A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 4140-01-542-5522
NSN 6135-00-269-5843
NSN 5965-01-523-7676
NSN 6620-01-397-1085
NSN 5895-01-204-8433
NSN 5935-01-453-0659
NSN 5950-01-350-8713
NSN 5990-00-419-0236
NSN 6240-01-500-1714
NSN 6620-00-708-2688
NSN 5855-01-634-0259
NSN 6685-00-842-1109