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 2925-01-327-3069
NSN 5965-01-431-7377
NSN 5960-00-608-6711
NSN 5996-00-333-5182
NSN 5960-01-094-5958
NSN 5990-01-381-9526
NSN 6130-00-140-7326
NSN 5925-00-265-5807
NSN 6320-01-349-8077
NSN 5965-01-299-8690
NSN 5975-01-634-0678
NSN 6650-00-234-3275