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 5985-00-870-6277
NSN 5945-00-553-5831
NSN 6320-00-343-1798
NSN 5855-00-151-3853
NSN 6650-01-364-1313
NSN 5999-01-026-4627
NSN 5930-01-642-7814
NSN 5895-01-539-0761
NSN 6610-01-595-1032
NSN 5996-01-448-0920
NSN 6620-01-640-6761
NSN 2925-01-596-9448