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 5925-01-088-6863
NSN 6645-01-611-5068
NSN 5945-01-572-2180
NSN 6150-01-130-5212
NSN 5998-01-602-4825
NSN 6240-01-422-3461
NSN 7035-00-205-1932
NSN 6145-00-622-4634
NSN 5990-01-370-7912
NSN 5935-00-927-7662
NSN 6645-01-518-4296
NSN 5999-01-433-9985