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 6650-00-992-4540
NSN 6610-01-581-6338
NSN 5930-01-167-8177
NSN 6685-01-028-4072
NSN 5996-01-374-5820
NSN 5835-01-270-7899
NSN 5945-01-615-0388
NSN 7035-01-053-4769
NSN 5930-01-144-7081
NSN 5960-00-011-9315
NSN 6645-01-076-3494
NSN 7035-00-009-8705