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 6650-00-950-4107
NSN 5990-01-283-9428
NSN 5999-01-477-9201
NSN 6620-00-816-9755
NSN 6130-00-862-5516
NSN 6685-01-318-8895
NSN 6620-01-555-5218
NSN 6130-00-097-6073
NSN 5905-00-244-1530
NSN 5996-01-538-9357
NSN 5990-01-507-7495
NSN 5925-00-999-9320