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 5855-01-010-4921
NSN 5960-01-177-7406
NSN 5998-01-518-9195
NSN 5960-00-594-0824
NSN 6620-01-168-7705
NSN 5945-01-421-1808
NSN 5925-01-363-7765
NSN 6240-01-021-5354
NSN 4140-01-350-2532
NSN 5935-01-275-3064
NSN 5998-01-378-8541
NSN 5999-01-508-8832