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 5960-01-222-4199
NSN 4140-01-414-5320
NSN 5945-01-471-3407
NSN 5990-01-227-0660
NSN 5905-01-080-5708
NSN 6645-01-136-0562
NSN 5935-01-622-1981
NSN 6620-01-130-5700
NSN 5835-00-711-3371
NSN 5835-01-632-6627
NSN 5965-01-512-1985
NSN 5960-00-521-9719