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 6240-01-414-3873
NSN 7035-00-553-6951
NSN 5960-00-256-1203
NSN 5910-01-417-2594
NSN 4140-00-755-6814
NSN 6150-01-217-1361
NSN 4140-01-408-2985
NSN 2925-01-458-5808
NSN 6150-01-178-9112
NSN 5935-00-647-4020
NSN 5915-01-585-4118
NSN 6610-00-348-6696