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 4140-00-204-3563
NSN 5996-00-887-0595
NSN 5930-00-431-4999
NSN 5915-01-551-0745
NSN 6220-00-403-3444
NSN 7035-01-647-7885
NSN 6610-00-955-6118
NSN 5935-01-474-1331
NSN 6105-01-163-7655
NSN 6650-00-322-6140
NSN 6240-01-004-8790
NSN 6645-00-684-3424