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 5935-00-552-1459
NSN 6610-00-855-2821
NSN 6105-01-605-7622
NSN 6110-00-100-4775
NSN 5915-01-534-3397
NSN 6145-00-681-4417
NSN 6130-01-263-5724
NSN 6220-01-212-9016
NSN 5920-01-476-5120
NSN 5999-01-246-3413
NSN 5999-00-500-7057
NSN 6650-01-064-3557