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 6240-00-426-1972
NSN 5999-00-873-1665
NSN 5920-01-442-7685
NSN 5905-01-552-1308
NSN 5920-01-445-7000
NSN 6220-01-077-9868
NSN 5990-00-223-5938
NSN 5905-00-995-9541
NSN 5855-01-010-4921
NSN 5965-01-465-4370
NSN 6610-01-033-1748
NSN 5915-01-495-5882