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 5985-01-128-9978
NSN 5960-00-238-3830
NSN 5915-00-765-6969
NSN 6105-01-634-0322
NSN 6620-01-649-0748
NSN 6620-01-630-3494
NSN 5895-01-003-9424
NSN 5895-00-689-2990
NSN 6645-01-514-3353
NSN 5925-00-900-5354
NSN 5905-00-017-9771
NSN 6130-01-371-1049