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 5895-00-596-8678
NSN 5950-01-265-6995
NSN 6610-01-534-2147
NSN 6110-00-456-2058
NSN 6650-01-259-0918
NSN 5915-00-050-8522
NSN 5950-01-391-0030
NSN 6150-01-632-2418
NSN 5945-01-473-3447
NSN 5905-01-263-6434
NSN 5945-01-510-2793
NSN 5985-00-213-3786