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 6320-01-564-0893
NSN 6610-01-005-9173
NSN 5835-01-070-9324
NSN 5905-01-344-4591
NSN 5905-00-350-6247
NSN 5998-00-271-1555
NSN 6645-00-336-4783
NSN 5910-00-958-1767
NSN 5985-00-409-5604
NSN 6220-01-095-4860
NSN 5999-01-401-5322
NSN 5998-01-403-2586