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 5835-00-315-3797
NSN 7035-01-098-5474
NSN 5905-01-306-8394
NSN 5998-01-292-3025
NSN 5965-00-006-8004
NSN 5965-01-218-5003
NSN 5930-00-974-9996
NSN 5985-00-382-7242
NSN 5950-01-577-2308
NSN 6105-01-029-8695
NSN 6645-01-142-8502
NSN 5990-00-140-4559