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 5855-00-995-2098
NSN 6320-01-583-6809
NSN 6220-00-456-2911
NSN 6240-01-123-9040
NSN 5950-01-504-3475
NSN 6105-01-461-7953
NSN 5895-01-547-7697
NSN 6685-01-569-0937
NSN 5905-01-303-0677
NSN 5855-01-149-4110
NSN 5920-01-243-6469
NSN 5965-00-501-7835