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 5990-00-172-9260
NSN 6220-01-450-3264
NSN 5915-01-547-4655
NSN 6645-01-478-2140
NSN 5920-00-501-2096
NSN 5998-01-437-6226
NSN 5999-01-570-3889
NSN 5990-00-422-2093
NSN 5920-01-277-9505
NSN 6620-00-278-7313
NSN 5960-01-425-1454
NSN 5925-01-398-8244