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 5990-01-188-7309
NSN 5930-00-075-0706
NSN 6620-00-828-3842
NSN 6650-00-629-8027
NSN 6650-00-852-2736
NSN 5975-01-516-9454
NSN 6150-01-516-5857
NSN 6130-01-124-8920
NSN 5895-00-203-2379
NSN 5996-00-540-6570
NSN 6685-00-940-7233
NSN 6620-01-606-8964