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 6240-01-156-0285
NSN 6105-01-456-0307
NSN 6145-01-467-2276
NSN 5975-00-097-6282
NSN 5975-00-470-7527
NSN 5965-01-535-5789
NSN 6320-00-225-7013
NSN 6320-00-845-3261
NSN 6105-00-210-0355
NSN 6220-01-373-7169
NSN 5855-01-499-8692
NSN 6685-01-486-6596