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 5999-00-072-7698
NSN 6110-00-243-1646
NSN 6620-01-090-3803
NSN 7035-01-374-4044
NSN 5920-01-044-5621
NSN 5998-00-864-8336
NSN 2925-01-625-6841
NSN 5905-00-960-8451
NSN 5996-01-027-8588
NSN 6685-00-514-6364
NSN 5910-01-212-3090
NSN 5835-01-629-2044