Tin plate on brass nut, cadmium plate on steel nut
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 6610-00-483-2073
NSN 6220-00-419-3633
NSN 6110-00-932-5257
NSN 5998-01-610-9556
NSN 5925-00-627-2011
NSN 7035-01-545-7761
NSN 5950-00-959-6413
NSN 5895-01-612-2181
NSN 6135-01-116-3385
NSN 6650-00-355-8920
NSN 7035-00-104-7613
NSN 6135-01-180-9611