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 5998-01-608-2593
NSN 6105-01-176-1478
NSN 5985-01-461-8575
NSN 6130-01-227-2115
NSN 6610-01-017-4789
NSN 6150-01-485-3181
NSN 6110-01-134-6550
NSN 2925-00-149-0760
NSN 5835-01-541-9991
NSN 6150-01-444-1487
NSN 5855-00-114-4954
NSN 5835-00-876-4544