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 5905-01-234-8290
NSN 6150-00-006-4231
NSN 2925-01-381-5307
NSN 6610-01-640-9039
NSN 5915-01-573-8221
NSN 5915-01-615-9346
NSN 5965-00-289-6280
NSN 7035-00-703-3535
NSN 5895-01-152-1514
NSN 6645-01-076-9310
NSN 6145-01-097-4577
NSN 5998-00-087-8000