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 5910-01-142-2688
NSN 5855-01-373-7538
NSN 5965-01-248-7231
NSN 6135-01-494-8657
NSN 6240-01-646-3061
NSN 6135-01-482-7901
NSN 6220-01-306-2428
NSN 5960-01-428-7300
NSN 6105-01-330-9482
NSN 6145-01-461-4852
NSN 6320-01-431-4359
NSN 5855-01-373-7538