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 6220-00-386-0997
NSN 6135-00-100-8890
NSN 6620-01-600-7483
NSN 5990-01-532-0670
NSN 5930-00-852-8490
NSN 6610-00-553-5103
NSN 6645-00-420-5072
NSN 5915-00-470-2472
NSN 6610-01-086-9545
NSN 5915-01-063-7561
NSN 6150-01-463-7875
NSN 6645-00-704-3630