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 6130-01-429-8442
NSN 6145-01-229-5654
NSN 6110-01-097-4800
NSN 5945-01-206-1155
NSN 4140-00-432-5593
NSN 5915-01-103-7999
NSN 5975-01-196-2031
NSN 5950-00-266-9058
NSN 4140-00-408-2789
NSN 6610-01-151-9454
NSN 6645-01-450-5175
NSN 5985-01-462-0054