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 5985-01-359-6512
NSN 5999-01-418-7244
NSN 6220-01-352-1643
NSN 4140-01-656-6937
NSN 6240-00-450-0675
NSN 5925-01-491-0509
NSN 6145-01-204-6997
NSN 5999-01-367-0496
NSN 6105-01-119-1592
NSN 6220-00-671-0384
NSN 6135-01-441-7922
NSN 6145-01-168-7756