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 6645-01-509-3221
NSN 5965-01-101-9094
NSN 4140-01-170-4479
NSN 5915-01-537-0605
NSN 5855-00-433-2377
NSN 5975-01-485-3490
NSN 6130-01-311-8185
NSN 6145-01-484-6415
NSN 6610-01-604-1330
NSN 5915-01-025-1362
NSN 6150-01-540-7897
NSN 5835-00-518-2740