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 6650-01-392-8020
NSN 2925-00-862-8550
NSN 5915-01-125-5120
NSN 6220-01-281-0349
NSN 5996-01-088-2260
NSN 5855-00-973-5717
NSN 5855-01-180-5369
NSN 6650-00-804-2039
NSN 6110-01-643-7375
NSN 5935-00-269-5516
NSN 6240-01-633-9357
NSN 6130-01-062-0073