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 6220-00-240-6443
NSN 6685-01-068-1092
NSN 5910-01-600-1714
NSN 5965-01-123-3770
NSN 4140-01-488-5980
NSN 6135-00-603-4859
NSN 6220-01-164-3651
NSN 5855-00-896-4047
NSN 5930-01-212-9907
NSN 6110-01-216-1692
NSN 5950-01-633-4839
NSN 5895-00-847-8935