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 5895-01-525-7645
NSN 5935-00-088-8788
NSN 6150-00-572-3229
NSN 5965-00-067-0290
NSN 6685-01-425-1719
NSN 6240-00-897-1209
NSN 5950-00-147-9009
NSN 4140-01-161-1048
NSN 5960-01-649-1341
NSN 6110-01-237-3225
NSN 6135-01-324-2505
NSN 5910-00-900-4641