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 6685-00-136-2234
NSN 5990-01-147-5225
NSN 5905-01-474-6420
NSN 6320-00-360-1744
NSN 6150-01-398-8973
NSN 5925-00-345-2663
NSN 5945-01-430-2222
NSN 4140-00-466-9268
NSN 2925-00-221-8529
NSN 5925-01-541-4758
NSN 6145-01-051-7012
NSN 5910-01-462-0081