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 6135-01-121-3225
NSN 6145-01-444-1668
NSN 7035-00-541-8516
NSN 6135-00-050-4393
NSN 6620-01-485-6459
NSN 5960-01-017-0989
NSN 5895-01-377-5923
NSN 6620-01-512-2016
NSN 5895-00-115-2879
NSN 5855-00-997-6225
NSN 5945-01-195-7360
NSN 5895-00-943-3552