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 5996-00-166-0037
NSN 5998-00-873-4129
NSN 6650-00-504-9946
NSN 2925-00-152-1825
NSN 5990-01-577-2120
NSN 5915-01-356-0509
NSN 5990-01-395-4194
NSN 6240-00-956-6424
NSN 2925-01-512-4682
NSN 5996-01-361-8299
NSN 6620-01-364-0195
NSN 6240-00-486-8447