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 6645-01-277-3970
NSN 6240-00-538-1416
NSN 4140-01-109-0273
NSN 5945-01-086-9328
NSN 6620-01-500-9847
NSN 5895-01-027-9992
NSN 5999-01-370-2279
NSN 2925-01-472-4144
NSN 5855-00-149-0766
NSN 2925-01-078-5702
NSN 6685-01-057-2823
NSN 5910-01-458-2001