Alloy steel, carbon-molybdenum grade 4 or alloy steel, chromium-molybdenum grade 7
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 5930-01-104-4492
NSN 4140-01-055-2900
NSN 6240-01-386-1354
NSN 5930-01-605-2955
NSN 6105-00-753-7495
NSN 2925-01-035-7699
NSN 5996-00-636-4849
NSN 6110-00-123-1793
NSN 5999-01-368-5511
NSN 5915-01-606-4386
NSN 6610-00-261-8159
NSN 6150-00-516-8445