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 6620-00-212-6921
NSN 5996-00-888-1180
NSN 6150-00-414-6424
NSN 4140-01-232-0537
NSN 6320-00-082-5868
NSN 6150-01-222-6990
NSN 6145-00-793-7816
NSN 5910-01-089-9785
NSN 5835-01-122-2747
NSN 6645-01-241-2294
NSN 6620-00-716-0001
NSN 6150-01-497-4663