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 6645-00-334-6767
NSN 2925-00-968-9594
NSN 6620-00-467-7414
NSN 5905-01-069-2815
NSN 6620-01-647-1393
NSN 5990-00-173-1432
NSN 6130-01-234-0213
NSN 2925-00-566-1917
NSN 5920-01-301-3837
NSN 6650-00-153-3155
NSN 6220-01-504-5517
NSN 5930-00-912-3559