2a and b8
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 6320-01-019-1028
NSN 5950-01-361-0465
NSN 5910-01-141-6667
NSN 5960-01-541-5734
NSN 6650-01-632-9153
NSN 5990-01-254-3197
NSN 5835-01-471-5848
NSN 6150-01-381-3305
NSN 5935-00-706-2392
NSN 5996-01-379-7978
NSN 7035-00-834-2090
NSN 6105-01-331-3048