Square nut; heavy
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 6685-00-429-5984
NSN 6610-00-150-7002
NSN 5910-00-467-1318
NSN 6610-01-625-2926
NSN 6685-00-491-8220
NSN 6135-00-191-6444
NSN 5945-01-314-2348
NSN 5965-01-406-3156
NSN 5990-01-113-0303
NSN 5985-00-467-0073
NSN 5985-01-614-7441
NSN 6130-01-383-7469