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 6650-01-300-1668
NSN 6320-00-894-1644
NSN 6620-01-100-2530
NSN 5925-00-928-8261
NSN 5996-01-400-0917
NSN 6145-01-027-1454
NSN 6645-01-510-3496
NSN 6240-01-495-0597
NSN 6220-01-467-9608
NSN 5990-00-822-5451
NSN 6135-00-927-5848
NSN 6145-01-500-9192