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 6685-00-426-2121
NSN 5975-01-177-9346
NSN 5990-01-546-1649
NSN 5855-00-995-2098
NSN 4140-01-119-1538
NSN 5915-00-027-7665
NSN 5985-01-099-9613
NSN 5910-01-124-0096
NSN 5935-00-983-7571
NSN 5998-01-071-3909
NSN 5935-01-508-2861
NSN 6150-00-728-0570