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 5950-00-583-1999
NSN 4140-00-122-6422
NSN 6610-01-419-4123
NSN 6220-01-435-6297
NSN 5975-01-411-6597
NSN 7035-01-512-1826
NSN 6150-00-134-1080
NSN 6105-00-726-8684
NSN 5990-00-013-6862
NSN 5985-01-061-0600
NSN 6130-01-552-5920
NSN 5985-01-374-2622