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 5905-01-112-6629
NSN 6145-00-849-7691
NSN 6650-00-463-7506
NSN 5930-01-659-9526
NSN 5855-01-302-5493
NSN 6650-01-431-6796
NSN 7035-01-350-0824
NSN 6145-01-631-1343
NSN 5835-01-653-7806
NSN 5855-01-657-7657
NSN 5905-00-520-8805
NSN 5915-01-621-6893