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 6240-01-124-0037
NSN 5975-01-505-7597
NSN 6685-00-070-9755
NSN 6110-00-130-5342
NSN 4140-00-422-5571
NSN 5920-01-396-9278
NSN 6620-01-348-1893
NSN 6650-00-008-9646
NSN 5925-01-045-8050
NSN 5895-01-496-3737
NSN 6650-01-116-0007
NSN 5960-01-170-4057