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 5895-01-353-4899
NSN 5990-00-212-4316
NSN 4140-01-495-3768
NSN 5960-00-512-9121
NSN 6240-01-179-1061
NSN 6145-01-426-8976
NSN 6620-01-434-6538
NSN 6110-00-908-0196
NSN 6130-01-281-3746
NSN 6105-01-529-4771
NSN 6610-00-012-8072
NSN 5965-01-464-3372