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 5999-00-451-2611
NSN 6610-00-411-7246
NSN 5910-00-806-4408
NSN 6320-01-176-8367
NSN 5998-01-023-8873
NSN 6220-00-531-6430
NSN 5975-01-627-8512
NSN 6240-00-235-5159
NSN 6620-01-453-3135
NSN 5990-01-411-5930
NSN 5920-01-449-0927
NSN 5990-01-411-7706