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 6135-01-265-1384
NSN 5985-00-348-3034
NSN 5990-00-296-4825
NSN 5910-00-534-7022
NSN 5935-01-361-9849
NSN 5945-01-013-6466
NSN 6650-00-518-5194
NSN 2925-01-163-6716
NSN 6685-01-244-3226
NSN 5960-00-419-4521
NSN 6685-00-883-1036
NSN 5975-01-632-9582