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 5950-01-403-2852
NSN 2925-01-218-5556
NSN 5905-01-443-4791
NSN 6645-01-290-1448
NSN 6145-01-479-0047
NSN 2925-00-098-4131
NSN 6220-01-634-0660
NSN 5990-01-004-6343
NSN 6110-01-600-5921
NSN 5935-01-556-3671
NSN 5960-00-115-2199
NSN 6650-01-389-0225