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 5985-01-634-0635
NSN 5915-00-233-6346
NSN 6685-00-155-8158
NSN 6320-01-067-0474
NSN 5999-01-418-0941
NSN 5960-00-040-9989
NSN 2925-00-682-5028
NSN 2925-00-142-0641
NSN 5925-01-373-6327
NSN 5999-01-606-8571
NSN 6135-00-231-7257
NSN 5985-00-336-5813