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 4140-01-372-8722
NSN 6610-00-890-9099
NSN 6240-01-432-7926
NSN 6320-01-019-1028
NSN 5905-01-546-1723
NSN 5998-01-444-0919
NSN 5950-00-097-4085
NSN 6240-00-734-3276
NSN 5935-00-177-3505
NSN 5990-01-421-5342
NSN 6645-01-510-3496
NSN 6150-01-526-4908