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 5905-01-005-1489
NSN 6620-01-423-7300
NSN 5945-01-226-1786
NSN 6610-01-236-8359
NSN 6650-01-202-8014
NSN 5960-01-201-6316
NSN 5910-01-026-3352
NSN 6105-00-896-9756
NSN 5999-01-138-3968
NSN 6220-00-552-0667
NSN 7035-01-540-9072
NSN 6645-00-081-4298