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 6135-01-377-5729
NSN 5855-00-004-0904
NSN 2925-01-261-0701
NSN 5960-01-213-6292
NSN 5910-00-269-2777
NSN 6130-01-508-3664
NSN 6685-00-035-9373
NSN 6145-00-181-9634
NSN 5925-01-113-8272
NSN 5960-01-234-9107
NSN 5935-01-543-8402
NSN 5910-00-491-4686