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 4140-01-182-1392
NSN 6220-01-065-2171
NSN 5895-00-205-2924
NSN 5985-01-388-3200
NSN 6150-01-298-4668
NSN 5985-01-252-8164
NSN 5975-01-399-8564
NSN 5990-01-277-9753
NSN 5985-01-562-1428
NSN 6610-00-410-8968
NSN 5905-01-276-9973
NSN 6240-00-296-0488