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 5905-01-232-4092
NSN 5999-01-500-3545
NSN 5915-01-661-1817
NSN 5930-01-656-6818
NSN 5975-01-581-1672
NSN 6110-01-147-5936
NSN 5895-00-576-0716
NSN 5905-00-948-0295
NSN 5999-01-432-0510
NSN 6320-01-440-4982
NSN 5910-01-219-9704
NSN 5985-01-149-9321