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: Nuts of iron or steel
NSN 6130-01-194-2207
NSN 5990-01-443-2931
NSN 6645-01-500-0827
NSN 5999-01-103-3013
NSN 5965-00-997-5764
NSN 4140-01-168-7685
NSN 5855-00-560-0110
NSN 6650-01-483-0938
NSN 6320-01-449-1014
NSN 6110-01-521-3032
NSN 5999-00-669-8928
NSN 6620-01-028-6374