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 6645-01-142-1707
NSN 6320-00-636-0922
NSN 6620-01-025-4690
NSN 5996-01-248-9699
NSN 5905-00-189-0621
NSN 5990-01-055-1523
NSN 6135-01-398-5922
NSN 5945-00-564-1046
NSN 6620-01-145-7762
NSN 6650-01-237-4689
NSN 5985-00-461-8000
NSN 5960-01-067-0788