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 6220-01-087-3811
NSN 5960-01-323-0024
NSN 5965-01-399-8454
NSN 5998-01-137-2169
NSN 5985-00-584-3795
NSN 5910-01-606-5661
NSN 6620-00-787-6683
NSN 7035-01-621-4812
NSN 6110-01-605-4165
NSN 5950-01-377-7622
NSN 6145-01-006-9548
NSN 5920-00-826-9035