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 5920-00-584-4592
NSN 6105-01-586-6244
NSN 6110-01-587-0918
NSN 6685-00-458-4738
NSN 5920-01-301-3837
NSN 5935-00-450-1652
NSN 5930-00-576-7369
NSN 5905-01-266-0277
NSN 6320-01-519-8767
NSN 5960-00-246-9749
NSN 6150-01-509-9269
NSN 6150-00-583-9878