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 6320-01-160-0416
NSN 5835-01-515-6537
NSN 5935-00-736-7879
NSN 5915-00-167-0306
NSN 6145-01-397-1598
NSN 6220-01-050-8923
NSN 6650-01-007-2786
NSN 2925-00-284-1534
NSN 5855-01-364-9810
NSN 5999-01-348-4393
NSN 5855-00-221-9435
NSN 2925-01-540-7389