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 6110-01-360-6808
NSN 6320-01-631-7828
NSN 6150-00-925-2465
NSN 6145-00-005-1018
NSN 6610-00-365-4454
NSN 5985-01-430-0439
NSN 6320-01-585-8468
NSN 6610-00-960-5711
NSN 5925-00-405-9343
NSN 5930-00-168-1448
NSN 5835-00-269-2232
NSN 6620-00-593-5313