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 5905-01-566-8378
NSN 6145-00-753-2264
NSN 6620-01-412-0938
NSN 5835-00-224-9148
NSN 6130-01-308-6190
NSN 5999-01-144-9810
NSN 5945-01-202-6177
NSN 6135-00-100-8890
NSN 6145-01-050-7531
NSN 5920-01-620-6564
NSN 5999-00-558-4264
NSN 2925-00-536-4574