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 5905-00-257-6156
NSN 6240-01-406-5345
NSN 5930-01-655-7550
NSN 5998-00-633-5169
NSN 5965-00-594-3115
NSN 7035-01-077-6041
NSN 6320-00-636-0922
NSN 6240-01-449-0746
NSN 6685-00-478-7008
NSN 6685-01-646-7601
NSN 6220-00-695-1107
NSN 6240-00-893-4799