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 4140-01-245-8866
NSN 6130-01-438-1100
NSN 6610-01-257-5808
NSN 6620-01-344-6074
NSN 5895-01-006-7932
NSN 6620-01-361-8685
NSN 6240-01-320-1308
NSN 6620-00-009-0904
NSN 6650-01-141-3882
NSN 5999-00-035-4999
NSN 5985-01-367-2842
NSN 5965-00-493-6008