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 5930-00-369-0959
NSN 4140-01-084-0949
NSN 6320-01-183-8196
NSN 6610-00-259-2992
NSN 5985-00-456-7207
NSN 5945-01-263-4476
NSN 6320-00-036-3688
NSN 5945-01-373-4883
NSN 5985-01-541-4797
NSN 5835-01-360-2657
NSN 6105-00-869-2460
NSN 6610-01-426-5090