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 5925-00-940-8600
NSN 4140-01-224-2847
NSN 5930-01-207-0082
NSN 5835-01-616-6131
NSN 6135-01-265-1384
NSN 5965-01-048-4767
NSN 6130-01-561-8314
NSN 6105-01-446-1914
NSN 6645-00-004-4562
NSN 5975-00-246-4906
NSN 5945-01-183-3768
NSN 5990-01-529-6347