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 6645-00-321-6071
NSN 6105-01-178-7893
NSN 5855-00-149-0766
NSN 5855-01-502-7488
NSN 5950-01-239-0566
NSN 5990-00-101-2524
NSN 5855-01-548-9489
NSN 5935-01-295-5747
NSN 5990-01-176-2724
NSN 6645-01-390-3442
NSN 6645-01-491-9845
NSN 6220-01-401-5337