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 6320-00-139-1090
NSN 6110-01-398-1507
NSN 5905-01-077-4740
NSN 4140-00-273-9884
NSN 5920-01-148-9193
NSN 6685-01-598-7340
NSN 5998-01-353-7146
NSN 5975-01-330-1613
NSN 5945-00-105-6520
NSN 5999-01-306-2550
NSN 5915-01-321-2603
NSN 5990-00-306-0222