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 5855-01-351-2541
NSN 6650-01-030-5545
NSN 6105-01-415-5555
NSN 5945-00-276-9261
NSN 5920-00-252-3197
NSN 6220-00-222-4399
NSN 2925-00-329-2282
NSN 5990-01-060-3687
NSN 5950-01-128-6130
NSN 6645-01-633-1852
NSN 6110-01-215-7681
NSN 6145-01-288-6692