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: Nuts of iron or steel
NSN 5998-01-648-6680
NSN 6650-00-084-4258
NSN 6110-00-288-4179
NSN 6610-00-497-1240
NSN 6620-01-303-2563
NSN 7035-00-337-8745
NSN 5996-00-082-0320
NSN 5990-01-606-1873
NSN 5999-01-584-2815
NSN 6220-01-202-7279
NSN 6610-00-015-9383
NSN 6620-01-495-7446