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 4140-00-413-0877
NSN 5950-01-340-3361
NSN 5960-01-054-9639
NSN 5920-00-180-4278
NSN 6620-00-906-1726
NSN 6645-00-641-3202
NSN 6610-00-614-1703
NSN 6620-01-108-3467
NSN 6150-00-967-5488
NSN 6240-01-086-3160
NSN 6130-01-625-3658
NSN 5925-01-288-8651