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 6650-00-862-7143
NSN 5998-01-093-8865
NSN 6685-01-131-8120
NSN 6645-00-664-4665
NSN 6135-00-567-1322
NSN 5985-01-014-4924
NSN 6645-00-072-9243
NSN 6135-00-461-3590
NSN 5990-01-544-0364
NSN 6220-00-344-3189
NSN 5925-01-197-9899
NSN 5990-00-518-3195