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 5990-00-605-0391
NSN 5930-00-491-6556
NSN 5975-00-763-5437
NSN 6150-01-497-9533
NSN 5999-01-519-4760
NSN 6105-01-201-0616
NSN 5905-00-444-9159
NSN 6105-01-141-7727
NSN 5925-01-363-1365
NSN 5975-01-453-6543
NSN 5895-01-288-4194
NSN 6610-01-439-2651