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 5975-00-707-6245
NSN 5930-00-103-6453
NSN 6220-00-984-7767
NSN 5965-01-185-7354
NSN 6645-00-869-0850
NSN 6130-00-085-6309
NSN 6320-01-021-6633
NSN 5975-01-344-1258
NSN 5998-01-067-9359
NSN 5925-01-057-7559
NSN 5998-01-021-0775
NSN 5835-01-360-2657