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 6105-01-505-8023
NSN 5935-00-148-1265
NSN 5855-00-532-0025
NSN 6135-01-604-8739
NSN 6620-00-887-3451
NSN 6135-00-196-5267
NSN 5965-01-320-7832
NSN 6150-01-239-9072
NSN 5985-01-062-0675
NSN 6685-01-188-4139
NSN 6645-00-269-2764
NSN 5960-00-148-4493