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 6110-00-271-9928
NSN 6650-00-287-5868
NSN 6240-00-738-1878
NSN 5855-01-286-9928
NSN 5975-01-252-7327
NSN 2925-01-633-4048
NSN 6135-00-548-2765
NSN 5855-00-361-0167
NSN 6150-00-353-7392
NSN 6645-00-646-6631
NSN 6130-01-493-9035
NSN 5985-01-602-5541