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 5960-01-522-0391
NSN 6145-00-988-3870
NSN 5985-01-176-6721
NSN 6240-00-737-2775
NSN 5950-01-502-7019
NSN 5999-01-399-8726
NSN 5905-01-178-9561
NSN 5925-01-073-8954
NSN 6220-01-254-0091
NSN 6645-01-093-5015
NSN 5998-01-117-1398
NSN 6685-01-054-3166