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 6135-01-460-3243
NSN 5910-00-302-9473
NSN 6685-01-392-0059
NSN 5999-01-450-9843
NSN 6610-01-181-4398
NSN 5998-00-776-0479
NSN 5985-01-350-3454
NSN 5990-01-591-0701
NSN 6650-00-246-3751
NSN 5975-00-527-9656
NSN 5920-01-426-8517
NSN 5999-01-383-1067