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 5998-00-661-0380
NSN 6620-00-932-1207
NSN 4140-01-186-6250
NSN 7035-00-531-8143
NSN 5945-01-223-6334
NSN 5950-00-483-2139
NSN 5999-01-359-0682
NSN 5960-01-219-5504
NSN 4140-01-416-4898
NSN 5905-01-494-0110
NSN 5895-01-333-9508
NSN 5945-01-531-1240