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 7035-01-627-8718
NSN 6645-00-599-8890
NSN 5945-00-683-8334
NSN 5990-01-258-3848
NSN 5930-01-181-4877
NSN 5950-01-359-9531
NSN 6105-01-163-1114
NSN 5895-01-124-8579
NSN 5855-01-521-7133
NSN 5999-01-027-8889
NSN 5920-01-309-9216
NSN 2925-01-483-6248