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 6650-00-185-3133
NSN 6110-00-248-7475
NSN 6105-01-479-8988
NSN 5925-01-166-4051
NSN 6145-00-301-9124
NSN 5999-00-918-0536
NSN 6620-00-245-3242
NSN 5920-01-381-1306
NSN 5910-01-481-6458
NSN 5996-01-381-6564
NSN 4140-01-630-8246
NSN 6320-01-607-1491