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 6650-00-272-2271
NSN 6650-00-104-5368
NSN 5960-00-067-0038
NSN 5999-00-824-1127
NSN 6135-01-464-2075
NSN 5855-01-291-6790
NSN 5915-01-423-8561
NSN 5835-01-336-1153
NSN 6110-01-363-8375
NSN 5996-01-094-7025
NSN 5930-01-183-6594
NSN 6105-01-527-1156