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 5985-01-259-4314
NSN 6105-00-265-6433
NSN 2925-01-658-9457
NSN 5855-01-529-7260
NSN 5999-01-322-1042
NSN 5960-01-366-6246
NSN 7035-00-834-2090
NSN 6610-01-361-9988
NSN 5999-00-224-9903
NSN 5895-01-493-8832
NSN 6150-00-456-2025
NSN 5915-01-571-9025