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: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons
NSN 6650-00-617-7573
NSN 2925-01-279-1558
NSN 5999-01-634-0576
NSN 6105-00-408-9616
NSN 4140-01-417-2611
NSN 5905-00-246-6672
NSN 6150-01-565-7844
NSN 6130-01-152-4573
NSN 5945-01-502-7415
NSN 5915-00-156-2083
NSN 6220-01-509-0469
NSN 6685-00-947-0059