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 6220-01-300-1653
NSN 6145-01-384-4477
NSN 5999-01-100-6015
NSN 6610-00-302-3344
NSN 6645-01-168-6348
NSN 6220-00-407-8143
NSN 5925-01-506-7833
NSN 5945-00-194-1526
NSN 6240-00-883-8484
NSN 6685-00-465-2019
NSN 5855-01-658-4510
NSN 5985-01-102-2903