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 4140-00-453-5753
NSN 5895-01-617-8902
NSN 6150-01-134-9133
NSN 6135-01-498-7945
NSN 5935-00-661-0825
NSN 7035-00-048-3723
NSN 5975-01-178-8655
NSN 5930-00-342-0502
NSN 5999-00-967-4874
NSN 5990-00-436-7766
NSN 5996-01-359-8719
NSN 6150-01-584-1041