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 6620-01-062-1662
NSN 7035-00-111-4389
NSN 5965-01-309-8679
NSN 6650-01-327-9403
NSN 6240-00-372-4841
NSN 5950-00-039-7698
NSN 6135-01-487-6275
NSN 5985-01-043-3214
NSN 6145-01-467-5452
NSN 5965-00-908-1402
NSN 5945-01-171-6560
NSN 6620-00-943-8020