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 6650-01-209-1422
NSN 2925-00-587-0672
NSN 6135-01-408-9244
NSN 6220-01-207-0523
NSN 5915-01-197-5572
NSN 5895-00-186-8572
NSN 5999-00-057-9180
NSN 5910-01-228-3184
NSN 6240-00-952-9561
NSN 5915-00-223-5308
NSN 5996-01-266-6741
NSN 6130-00-837-6902