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 6145-01-205-9320
NSN 6650-00-883-4790
NSN 6610-01-659-3277
NSN 5950-00-535-1394
NSN 5925-01-410-8515
NSN 4140-01-382-9517
NSN 6150-00-347-9341
NSN 6685-01-536-0206
NSN 6645-00-593-5420
NSN 5998-01-406-5746
NSN 5905-01-440-1885
NSN 5998-01-446-0434