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 6610-01-371-3006
NSN 5996-00-621-3898
NSN 6110-01-025-1286
NSN 6320-00-036-3688
NSN 2925-00-258-9786
NSN 6220-01-168-6444
NSN 5855-01-391-7472
NSN 5835-01-647-6426
NSN 5835-00-554-0399
NSN 5925-00-290-4451
NSN 5925-00-224-7425
NSN 5999-01-308-5426