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 5998-00-428-2617
NSN 5855-01-406-7237
NSN 5990-00-110-1153
NSN 4140-01-136-9802
NSN 5999-01-452-7893
NSN 6150-00-073-3007
NSN 5950-00-520-2844
NSN 6240-00-079-1759
NSN 5975-01-304-3887
NSN 6645-00-601-6793
NSN 6220-01-154-5436
NSN 6685-01-236-4285