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 6620-00-945-3072
NSN 6150-00-864-5114
NSN 5975-01-196-1641
NSN 5915-01-176-7004
NSN 6135-00-497-0491
NSN 2925-00-167-6762
NSN 5855-01-266-1645
NSN 4140-00-350-9401
NSN 5935-00-332-5674
NSN 6150-00-683-5349
NSN 6220-01-567-9368
NSN 6130-00-105-0500