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 6130-01-466-6150
NSN 6320-01-547-9877
NSN 6135-01-447-5083
NSN 5996-00-123-2198
NSN 7035-00-887-4674
NSN 6240-00-801-8002
NSN 6240-01-150-2712
NSN 5835-01-018-6294
NSN 5895-01-093-3354
NSN 5855-01-147-6024
NSN 5915-01-026-2420
NSN 6145-01-422-0806