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 5985-01-006-9919
NSN 6145-01-308-0196
NSN 2925-01-522-5631
NSN 5835-01-623-3328
NSN 6620-01-272-7831
NSN 5920-01-588-8770
NSN 5999-00-817-6019
NSN 5920-01-659-8134
NSN 6110-00-782-0191
NSN 6150-00-644-8745
NSN 6645-01-019-8662
NSN 7035-01-462-5766