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 6645-01-611-0968
NSN 7035-01-106-3476
NSN 5985-01-361-6122
NSN 6105-01-309-5313
NSN 6645-01-633-1852
NSN 6220-00-246-0744
NSN 5996-01-438-5839
NSN 6110-01-423-0691
NSN 6320-01-415-0953
NSN 6105-01-081-2041
NSN 5975-01-501-5892
NSN 5996-01-585-1663