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 5999-00-089-7316
NSN 5895-01-247-2448
NSN 5895-01-041-0557
NSN 5925-00-715-7831
NSN 6145-00-317-2087
NSN 5996-01-386-4230
NSN 6110-00-446-6099
NSN 6150-00-175-7868
NSN 6105-01-441-1039
NSN 6645-00-192-1152
NSN 6220-00-443-0589
NSN 5990-01-595-9441