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 6645-01-318-1874
NSN 4140-01-415-0125
NSN 5930-01-204-8792
NSN 6620-01-168-8450
NSN 6220-01-609-7059
NSN 4140-01-348-1520
NSN 6135-01-265-1384
NSN 6110-00-834-1422
NSN 4140-01-385-9728
NSN 6650-01-263-5412
NSN 5945-01-535-9518
NSN 5999-00-199-9551