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 5930-01-322-8575
NSN 5915-01-456-2818
NSN 6110-01-561-3497
NSN 5999-01-539-8403
NSN 5998-01-104-4262
NSN 6220-01-579-0349
NSN 5998-01-390-5767
NSN 6145-01-560-2262
NSN 6150-00-518-4558
NSN 6320-00-539-9283
NSN 6610-00-925-5064
NSN 5925-01-146-5528