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 6620-00-932-6508
NSN 6150-01-223-7292
NSN 5935-01-147-1673
NSN 5999-01-455-7614
NSN 6220-00-038-7532
NSN 5965-00-324-2428
NSN 5985-01-326-6580
NSN 5996-01-087-7759
NSN 5835-00-622-3334
NSN 6135-01-608-3470
NSN 6145-01-555-8131
NSN 6135-00-455-2425