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 6135-01-520-4199
NSN 6240-01-038-0821
NSN 5965-01-354-9834
NSN 7035-01-204-7481
NSN 5945-01-206-0637
NSN 5905-01-371-7015
NSN 6135-01-294-2131
NSN 6150-00-866-6496
NSN 6620-01-417-3314
NSN 5835-00-231-9544
NSN 7035-00-235-3529
NSN 6620-00-500-0041