Square nut; heavy
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 5915-01-004-1784
NSN 5905-00-951-2609
NSN 5960-01-331-1076
NSN 5905-01-386-6187
NSN 5965-01-365-1678
NSN 6150-01-050-8448
NSN 6645-01-056-5291
NSN 6645-01-463-3441
NSN 6220-01-379-3498
NSN 6110-00-597-8072
NSN 5915-00-740-4336
NSN 6645-01-352-6583