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 6610-00-813-7023
NSN 5999-01-109-3292
NSN 6220-00-466-2681
NSN 5996-01-451-5705
NSN 5930-01-582-8710
NSN 5996-01-147-6054
NSN 5895-00-610-2248
NSN 5835-01-336-1153
NSN 6110-01-096-6084
NSN 5925-00-636-5683
NSN 5960-01-599-9821
NSN 5910-01-025-1898