Head markings indented at 120.0 degrees
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 5998-01-626-5049
NSN 5910-00-093-0362
NSN 6240-01-094-6262
NSN 5999-01-616-3520
NSN 7035-01-576-5481
NSN 5910-01-140-0329
NSN 5945-00-081-8452
NSN 6650-01-550-8892
NSN 5998-00-845-1994
NSN 6110-00-371-2458
NSN 5965-01-525-7267
NSN 6105-01-621-6350