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 5920-00-860-0456
NSN 6650-01-382-3870
NSN 5990-00-415-5351
NSN 6220-01-656-2376
NSN 6610-01-014-3964
NSN 6130-01-580-3678
NSN 5990-01-200-7460
NSN 6620-01-445-1409
NSN 5930-01-596-7669
NSN 5996-01-161-9408
NSN 5990-01-263-0362
NSN 4140-00-699-0904