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 6130-00-065-8677
NSN 5985-01-611-5853
NSN 6620-01-371-1655
NSN 5930-01-406-6627
NSN 5999-01-497-6123
NSN 5999-01-386-1147
NSN 6610-01-444-1304
NSN 5975-01-602-9402
NSN 5895-00-256-1682
NSN 7035-00-500-7839
NSN 5935-01-372-9526
NSN 6220-01-118-8096