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 5965-01-506-7576
NSN 5975-01-077-5525
NSN 6645-01-558-6229
NSN 5935-01-363-1370
NSN 6320-01-481-7322
NSN 6685-01-438-3438
NSN 5999-00-460-4477
NSN 5910-01-023-7265
NSN 5855-01-634-0259
NSN 2925-00-087-2465
NSN 5895-01-037-7112
NSN 6145-01-376-8928