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 7035-01-146-7096
NSN 4140-01-355-3350
NSN 7035-01-396-3343
NSN 5960-00-945-1833
NSN 5950-01-492-9908
NSN 5915-01-273-0939
NSN 6110-01-248-4737
NSN 6610-01-492-6515
NSN 7035-00-286-6221
NSN 5975-01-502-8267
NSN 5910-01-417-3160
NSN 5990-01-543-6301