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 6105-01-243-3678
NSN 6110-01-158-0295
NSN 6620-01-219-0923
NSN 6620-00-148-9613
NSN 6320-01-225-9963
NSN 5990-01-170-6081
NSN 5965-01-555-5306
NSN 6130-01-077-1760
NSN 5985-01-415-5785
NSN 5998-01-141-6331
NSN 5950-00-277-3476
NSN 5920-01-314-0388