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 5960-01-503-0362
NSN 4140-01-625-7072
NSN 6650-01-338-9174
NSN 5905-01-554-2402
NSN 5925-01-024-9136
NSN 6145-01-437-3900
NSN 5985-00-563-7685
NSN 5835-00-138-7807
NSN 5920-01-468-9587
NSN 5925-00-471-4635
NSN 5975-01-062-0960
NSN 5920-01-440-3215