1/16 inch
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.)
NSN 5960-01-398-4883
NSN 5999-01-519-2442
NSN 5930-00-288-1882
NSN 6130-01-374-5790
NSN 6220-01-388-2269
NSN 5960-00-669-9793
NSN 5950-00-945-6676
NSN 6150-01-212-4344
NSN 5998-00-874-1062
NSN 7035-01-459-8268
NSN 6610-01-213-3024
NSN 5905-01-563-1999