Indent 3 places equally spaced one side only
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 5950-01-411-5778
NSN 5965-01-386-2988
NSN 6135-01-281-4758
NSN 5920-00-071-9241
NSN 5998-01-371-7342
NSN 5910-01-212-4231
NSN 5905-01-156-4983
NSN 5930-01-380-2978
NSN 2925-01-497-9381
NSN 5996-01-460-0840
NSN 5920-00-661-0840
NSN 2925-00-293-7213