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 6130-01-139-4491
NSN 6150-00-241-5439
NSN 6620-00-030-7759
NSN 6135-00-269-5843
NSN 6135-01-632-3365
NSN 5950-00-863-5589
NSN 5965-01-326-9860
NSN 5990-01-621-6969
NSN 6240-00-246-5060
NSN 5915-00-253-8541
NSN 6105-01-327-1195
NSN 6150-01-193-4775