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 5910-01-474-6341
NSN 5905-01-467-9990
NSN 7035-01-549-2928
NSN 5990-01-443-2931
NSN 6650-00-098-6128
NSN 6145-00-752-2562
NSN 5990-00-197-0159
NSN 5990-01-459-5482
NSN 5965-00-142-9052
NSN 7035-00-908-4933
NSN 5999-00-883-0585
NSN 6610-01-281-6036