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 4140-01-423-0731
NSN 6135-00-726-4142
NSN 5910-00-903-7528
NSN 6220-01-531-4502
NSN 6130-01-529-9029
NSN 5905-01-148-1215
NSN 5990-01-632-0969
NSN 6620-01-152-9453
NSN 5835-00-912-5656
NSN 6135-00-500-2082
NSN 5965-00-007-7863
NSN 6130-01-278-6948