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 5960-00-197-6282
NSN 6150-00-897-2080
NSN 6610-00-500-6944
NSN 6650-00-088-4741
NSN 5835-01-424-4577
NSN 6135-00-100-8890
NSN 6130-00-947-9232
NSN 5990-01-104-6703
NSN 6130-00-012-3070
NSN 6110-01-258-6220
NSN 5999-01-193-5374
NSN 6150-01-325-6603