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 6150-01-360-6211
NSN 5945-01-630-5078
NSN 6110-01-623-5621
NSN 5895-01-113-7725
NSN 6135-01-086-0809
NSN 6105-01-063-6264
NSN 4140-01-464-0711
NSN 5920-00-715-2541
NSN 7035-00-445-9657
NSN 5975-00-263-3379
NSN 5999-00-050-3186
NSN 5910-01-502-7955