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 6645-01-089-6459
NSN 5920-01-474-5404
NSN 5999-01-175-4903
NSN 5975-00-632-0217
NSN 5945-01-570-4626
NSN 5999-00-224-1521
NSN 5925-00-513-0939
NSN 6645-01-436-9702
NSN 5985-01-448-6104
NSN 6220-01-003-7184
NSN 5950-01-439-5990
NSN 6610-00-760-4476