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 5920-01-599-2656
NSN 5930-01-097-6517
NSN 6685-01-380-9740
NSN 7035-00-153-3826
NSN 5935-00-961-8577
NSN 6105-00-186-0161
NSN 6620-01-166-1866
NSN 5985-01-621-8725
NSN 5960-01-033-6651
NSN 6145-01-281-7222
NSN 5945-01-232-6466
NSN 5920-01-502-5838