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 5835-00-864-4481
NSN 5905-01-548-0968
NSN 5990-01-147-5225
NSN 6320-00-925-0558
NSN 6320-00-456-0836
NSN 4140-00-684-7314
NSN 5996-00-510-6410
NSN 5925-00-665-7946
NSN 5999-01-330-9283
NSN 5925-00-254-0562
NSN 6685-00-584-7375
NSN 6320-01-116-3980