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.)
Classification: Nuts of iron or steel
NSN 6145-01-503-7378
NSN 6645-01-344-1992
NSN 5910-01-553-0190
NSN 6220-01-519-9305
NSN 4140-01-413-7065
NSN 5996-00-540-6570
NSN 5920-00-215-5642
NSN 6220-01-212-9016
NSN 4140-01-632-2421
NSN 6150-00-428-1578
NSN 6650-01-652-9980
NSN 6610-00-951-4451