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 6685-01-649-1504
NSN 4140-01-425-1725
NSN 5985-00-241-3717
NSN 5998-00-226-5268
NSN 6650-00-404-6473
NSN 6220-01-206-7663
NSN 7035-01-463-3368
NSN 5930-01-467-2384
NSN 5910-00-186-9441
NSN 5895-00-574-0287
NSN 5925-00-004-7703
NSN 6320-01-183-8196