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: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 5960-01-429-5897
NSN 5950-01-420-7853
NSN 6150-00-647-3285
NSN 5915-00-593-8212
NSN 6610-01-062-8557
NSN 2925-00-474-4990
NSN 5945-01-595-2197
NSN 6150-00-964-7303
NSN 5945-00-753-9730
NSN 5915-00-850-2231
NSN 6645-01-413-0515
NSN 5990-00-868-3413