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 4140-00-534-1408
NSN 5950-01-380-9947
NSN 4140-01-124-8904
NSN 6650-00-620-0212
NSN 6685-01-350-3451
NSN 6645-01-373-8860
NSN 5835-01-123-4526
NSN 5905-00-678-0683
NSN 5905-01-408-5274
NSN 5930-01-487-4842
NSN 6130-01-377-9038
NSN 4140-01-060-2960