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 6610-01-368-7150
NSN 5990-01-627-8097
NSN 5965-01-237-3342
NSN 5935-01-499-5859
NSN 6110-01-572-9944
NSN 6150-01-465-0764
NSN 6130-00-161-7432
NSN 5930-00-997-5805
NSN 6645-01-117-6156
NSN 6320-00-004-9158
NSN 6650-01-463-2274
NSN 6220-00-848-1163