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
NSN 5855-01-145-8973
NSN 6620-00-136-6014
NSN 5950-01-415-5752
NSN 5985-01-218-5530
NSN 6110-00-525-3418
NSN 5910-01-126-7152
NSN 5930-01-184-2734
NSN
NSN 7035-01-511-6219
NSN 6110-01-218-9472
NSN 5975-00-761-2834