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 2925-00-265-7539
NSN 5930-01-014-7897
NSN 5935-00-296-4581
NSN 6105-01-422-3765
NSN 6150-00-563-1196
NSN 6135-00-753-2276
NSN 5996-01-398-4755
NSN 6320-00-937-5625
NSN 6220-01-534-5200
NSN 6610-01-454-2418
NSN 6220-00-280-2880
NSN 6610-01-354-7963