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 5960-00-234-5961
NSN 5990-01-546-1649
NSN 5975-01-066-6171
NSN 5999-01-397-8559
NSN 6240-01-646-5509
NSN 2925-01-462-1620
NSN 2925-01-545-2717
NSN 6150-00-221-2593
NSN 6685-00-609-8079
NSN 5996-01-113-0377
NSN 6145-01-018-1752
NSN 5905-01-201-7845