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 6110-00-116-0390
NSN 6685-01-540-4295
NSN 5999-01-222-8741
NSN 5950-00-540-9283
NSN 5910-01-281-3355
NSN 5855-00-004-0904
NSN 5998-01-251-7299
NSN 6240-01-168-6185
NSN 5920-01-474-0103
NSN 5950-00-126-5842
NSN 5925-00-666-4753
NSN 5990-01-652-7373