125.0 microinch surface finish on hex flats and both sides
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 5835-01-632-6627
NSN 5910-01-343-3176
NSN 2925-01-408-6205
NSN 6620-00-947-3889
NSN 6240-01-264-9986
NSN 6135-01-397-6564
NSN 5985-01-282-0075
NSN 5945-01-582-3683
NSN 5960-00-647-9159
NSN 6135-01-110-9470
NSN 6105-01-134-9915
NSN 6650-01-375-8207