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 2925-01-127-0167
NSN 5915-01-370-3505
NSN 2925-00-056-7112
NSN 6320-01-350-5570
NSN 6320-01-605-7059
NSN 6110-00-394-7187
NSN 5960-01-104-3426
NSN 6685-01-253-8747
NSN 6135-00-982-1882
NSN 6130-00-188-3717
NSN 7035-01-146-7096
NSN 5945-01-481-3701