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 6650-00-003-5413
NSN 6650-00-901-1501
NSN 6610-01-111-4807
NSN 5975-00-235-5209
NSN 5835-00-869-9288
NSN 7035-00-238-3662
NSN 5985-01-448-8992
NSN 6105-01-648-3282
NSN 6135-00-152-8729
NSN 6145-00-310-2598
NSN 6135-00-583-3966
NSN 6645-01-444-3016