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 6220-00-734-8874
NSN 6645-00-246-4934
NSN 5965-00-182-7928
NSN 5895-01-229-3863
NSN 6135-00-461-3590
NSN 6145-01-109-1420
NSN 5990-01-177-2838
NSN 5910-00-045-9260
NSN 5990-01-617-5156
NSN 5855-01-020-7982
NSN 6685-00-555-3054
NSN 5895-01-274-9610