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 2925-00-891-9289
NSN 5975-01-299-2467
NSN 5998-00-167-8826
NSN 6150-01-077-2704
NSN 6135-01-426-0671
NSN 7035-00-111-4389
NSN 6220-00-993-5708
NSN 5905-01-190-2503
NSN 6220-00-898-7311
NSN 6685-00-169-4994
NSN 5930-01-221-0547
NSN 6645-00-421-5287