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 5910-00-287-3258
NSN 5895-01-497-0570
NSN 2925-00-253-1655
NSN 6685-01-152-4203
NSN 5910-00-276-6883
NSN 6135-01-544-8463
NSN 5835-00-707-6266
NSN 5835-01-116-2369
NSN 6240-00-283-3553
NSN 6650-01-459-0571
NSN 6130-01-651-2255
NSN 2925-01-327-3069