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 6645-00-456-0080
NSN 5965-01-046-9619
NSN 5910-00-212-5969
NSN 5905-01-066-8638
NSN 6685-01-322-0139
NSN 4140-01-445-4935
NSN 5920-01-369-6385
NSN 6145-00-726-3720
NSN 5935-00-341-6461
NSN 2925-01-503-4386
NSN 5920-00-209-0443
NSN 6135-00-992-8750