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 5960-00-719-0125
NSN 5996-01-372-6608
NSN 6110-00-724-3136
NSN 5945-01-122-3246
NSN 5895-00-889-8308
NSN 5915-00-593-8212
NSN 5935-00-471-5236
NSN 6220-00-657-9795
NSN 6110-01-369-5021
NSN 6150-00-822-8192
NSN 6220-01-311-0196
NSN 6150-01-367-1210