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 5905-00-607-0924
NSN 6220-00-945-0806
NSN 6645-00-246-4934
NSN 5950-01-244-7813
NSN 5855-00-149-0766
NSN 6685-01-271-0715
NSN 6150-00-410-8920
NSN 5905-00-602-9780
NSN 6135-01-361-1306
NSN 5930-00-837-2397
NSN 5930-01-367-2786
NSN 5999-00-288-5954