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.)
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 5855-01-459-7508
NSN 5935-01-453-3978
NSN 5990-00-524-2293
NSN 6610-01-653-2733
NSN 6320-00-593-0379
NSN 2925-00-504-2363
NSN 6145-00-822-4033
NSN 5910-01-579-9610
NSN 5960-00-710-9818
NSN 6135-01-432-2785
NSN 5925-00-699-8140
NSN 6320-00-682-3448