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 5990-01-160-6978
NSN 5950-00-449-3775
NSN 5965-00-275-0491
NSN 5996-00-132-4203
NSN 6645-01-500-0827
NSN 5930-01-180-1767
NSN 5925-01-176-0922
NSN 5915-01-441-2982
NSN 5905-01-153-2325
NSN 6145-00-847-6772
NSN 6685-01-160-1710
NSN 6110-00-988-2400