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 6220-01-634-0660
NSN 6220-01-485-0333
NSN 6150-01-338-7736
NSN 4140-01-582-7739
NSN 5960-00-232-2512
NSN 5930-00-492-5859
NSN 5895-01-384-0418
NSN 5915-01-190-7691
NSN 5905-01-190-5243
NSN 6145-01-054-3874
NSN 5990-00-240-6454
NSN 6150-01-415-5864