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 5935-00-207-5796
NSN 5935-01-271-5971
NSN 5965-00-937-1851
NSN 6220-00-707-5044
NSN 6105-01-014-6104
NSN 5930-01-331-0907
NSN 6110-00-255-6502
NSN 6220-00-925-2233
NSN 5960-00-834-0571
NSN 6320-01-441-2438
NSN 5965-01-552-6545
NSN 5999-01-545-0462