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 6105-01-289-5905
NSN 5999-00-982-1037
NSN 6110-01-476-7391
NSN 5950-01-141-6741
NSN 5905-01-534-3754
NSN 5925-00-060-6732
NSN 5950-00-279-7184
NSN 6220-01-202-8855
NSN 5905-01-012-2520
NSN 5915-01-141-3688
NSN 5990-00-492-5063
NSN 6645-01-429-6768