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 6150-00-153-3196
NSN 5999-00-283-1134
NSN 5910-01-071-8605
NSN 5895-01-231-9519
NSN 6110-00-943-7836
NSN 6150-00-153-7296
NSN 5915-01-104-4044
NSN 4140-01-564-7500
NSN 5985-01-321-5084
NSN 5950-01-256-8877
NSN 5925-01-303-6842
NSN 5835-01-528-7454