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 6650-01-177-4398
NSN 5835-01-041-8104
NSN 5910-01-111-7538
NSN 5915-01-464-3853
NSN 5925-01-129-6222
NSN 6620-00-820-9616
NSN 5910-00-208-6811
NSN 5895-01-412-0950
NSN 6650-01-158-6888
NSN 5945-00-998-6943
NSN 5855-00-198-3197
NSN 7035-01-169-1166