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 2925-01-424-0235
NSN 5945-01-494-7908
NSN 5965-01-433-9864
NSN 5996-00-655-0305
NSN 5950-01-276-2580
NSN 5910-01-359-8211
NSN 5930-00-905-6999
NSN 6240-00-334-6766
NSN 6645-01-531-5321
NSN 6645-00-558-0028
NSN 5996-00-186-8709
NSN 5935-01-266-1892