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 6620-00-933-3640
NSN 6135-00-474-1397
NSN 6110-01-642-9174
NSN 5999-00-633-7592
NSN 4140-00-677-3510
NSN 5835-01-209-6410
NSN 5920-01-448-6914
NSN 6145-01-340-7589
NSN 5935-00-850-5013
NSN 5996-00-770-1850
NSN 5996-00-594-8587
NSN 6610-01-388-0563