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 5835-00-402-8387
NSN 6105-01-522-7248
NSN 5990-00-263-1289
NSN 5920-01-088-0707
NSN 5915-01-336-3012
NSN 2925-01-460-1601
NSN 5895-01-413-3576
NSN 5925-00-267-3044
NSN 5930-01-455-5508
NSN 6320-00-456-0836
NSN 5895-00-168-7648
NSN 6240-00-617-9599