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 5905-01-519-9021
NSN 5920-00-177-2075
NSN 5998-01-552-7863
NSN 5905-01-193-6249
NSN 6645-00-127-3835
NSN 6610-00-681-0590
NSN 6620-00-836-0399
NSN 6145-01-468-2923
NSN 5945-01-294-5738
NSN 5945-01-422-7642
NSN 5990-01-324-7529
NSN 4140-01-432-0292