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 5915-01-219-4594
NSN 6220-00-386-0997
NSN 6610-00-877-5905
NSN 6105-01-322-8246
NSN 2925-01-629-9416
NSN 5985-01-643-5246
NSN 5996-00-222-6049
NSN 5910-00-810-9138
NSN 5925-01-106-2086
NSN 5950-00-910-2866
NSN 6645-01-023-8020
NSN 6620-00-252-6425