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 6620-01-605-1154
NSN 4140-01-126-2582
NSN 5895-00-063-2191
NSN 6685-01-519-9160
NSN 5945-01-284-5665
NSN 5999-00-826-8451
NSN 6320-01-335-8336
NSN 6150-00-993-1395
NSN 6650-01-218-4742
NSN 5998-01-296-9195
NSN 5985-01-634-0635
NSN 5945-00-290-1779