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.)
NSN 5935-01-310-0707
NSN 6135-00-944-6953
NSN 7035-01-026-1171
NSN 5945-01-299-3812
NSN 6685-01-658-2363
NSN 5930-00-900-7327
NSN 5835-01-238-3381
NSN 6130-01-346-2971
NSN 6110-01-077-1473
NSN 5965-00-348-4165
NSN 6220-01-307-8223
NSN 5910-00-903-2395