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 5990-01-173-9531
NSN 6110-00-482-3372
NSN 5999-01-316-1037
NSN 6150-00-539-9812
NSN 6650-00-968-5700
NSN 6135-01-462-6040
NSN 6150-01-633-1653
NSN 6135-01-572-2207
NSN 5965-01-604-8548
NSN 6320-01-086-2602
NSN 5998-00-220-5796
NSN 6145-00-925-2004