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 5985-01-199-1197
NSN 6240-00-594-7138
NSN 6610-01-449-6676
NSN 6220-01-425-1588
NSN 5965-00-539-4163
NSN 6620-00-115-9050
NSN 5855-01-452-1406
NSN 6105-00-313-5174
NSN 5990-01-432-0523
NSN 5915-01-034-3494
NSN 5945-00-362-7192
NSN 5945-00-706-3620