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 6685-01-374-0837
NSN 5925-00-465-4534
NSN 5835-00-133-0599
NSN 4140-01-574-3955
NSN 6610-01-374-6505
NSN 5999-01-498-8953
NSN 6135-01-477-5259
NSN 6135-00-921-6487
NSN 6110-01-173-4004
NSN 5945-00-918-7601
NSN 5985-00-399-1174
NSN 6240-01-139-3377