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 4140-00-456-6139
NSN 5835-01-247-2634
NSN 6150-01-430-2564
NSN 5965-01-028-0326
NSN 6110-01-606-8699
NSN 5945-01-412-1103
NSN 5895-01-634-0630
NSN 5975-00-370-0401
NSN 5999-01-370-4184
NSN 6620-00-905-6590
NSN 6145-01-361-4174
NSN 6110-01-132-5997