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 6220-01-634-0660
NSN 6685-01-183-2890
NSN 6650-01-113-6689
NSN 6650-01-417-9115
NSN 6145-01-626-6051
NSN 5930-01-614-1814
NSN 5855-00-221-9435
NSN 6610-00-252-3405
NSN 5965-00-653-4782
NSN 5910-00-111-1332
NSN 5855-00-962-5792
NSN 6130-00-433-6264