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 5990-00-389-0554
NSN 5999-01-054-3949
NSN 5985-01-147-4449
NSN 2925-00-477-2654
NSN 5910-01-373-8239
NSN 5945-01-161-6202
NSN 5855-01-068-3683
NSN 6130-01-281-5103
NSN 5985-01-251-0844
NSN 6130-01-423-8338
NSN 6650-00-164-7480
NSN 6220-01-365-4090