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 5915-01-026-8569
NSN 5925-00-801-7120
NSN 6105-01-607-4306
NSN 6220-00-249-4751
NSN 5998-00-439-6205
NSN 6610-01-241-9120
NSN 5935-01-656-7385
NSN 6105-00-990-3592
NSN 2925-01-513-4457
NSN 6620-01-330-2658
NSN 5915-01-451-7535
NSN 5990-01-380-6121