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: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 5855-01-634-0259
NSN 2925-01-086-5507
NSN 5930-00-065-8978
NSN 6620-00-004-1374
NSN 5835-01-652-4959
NSN 5835-01-561-2959
NSN 6685-01-113-7552
NSN 5985-01-631-7760
NSN 5930-00-469-3083
NSN 5945-00-042-9442
NSN 5945-01-381-4328
NSN 6685-01-357-6358