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 5895-01-004-9861
NSN 5965-00-926-2591
NSN 5935-00-114-5360
NSN 5915-01-019-0989
NSN 5925-01-262-5031
NSN 6620-01-285-4685
NSN 5998-00-224-2543
NSN 5855-01-448-9794
NSN 5975-00-090-3725
NSN 6685-01-373-5767
NSN 5975-01-023-8773
NSN 5920-01-082-2761