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 4140-00-551-3151
NSN 6135-00-866-2311
NSN 6110-01-443-3395
NSN 6650-00-331-2232
NSN 5985-00-755-4625
NSN 5925-00-517-8512
NSN 6110-01-101-3799
NSN 5895-01-181-8894
NSN 6145-00-138-4658
NSN 6650-01-621-2891
NSN 5985-01-219-2475
NSN 5835-01-342-7975