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 4140-00-674-2856
NSN 5998-01-311-9308
NSN 5925-00-050-2938
NSN 5855-01-235-5491
NSN 6320-01-039-5891
NSN 6220-00-801-3872
NSN 5855-00-688-9954
NSN 6685-01-128-0174
NSN 5835-00-941-4959
NSN 5985-00-918-8298
NSN 6645-01-322-3124
NSN 6145-01-411-5895