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 5999-01-415-5090
NSN 5998-01-628-9851
NSN 5998-00-003-3532
NSN 6145-00-457-0324
NSN 6110-01-159-2245
NSN 6110-01-425-1449
NSN 6150-01-487-4525
NSN 5905-01-162-0817
NSN 5960-01-305-0528
NSN 5925-01-100-5478
NSN 6650-00-948-3647
NSN 5835-01-069-0700