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 6685-01-500-3031
NSN 6130-01-319-0990
NSN 5930-01-440-0498
NSN 6320-01-349-5515
NSN 6105-01-431-8998
NSN 5990-01-320-1412
NSN 6620-01-230-0197
NSN 5915-01-406-3847
NSN 5990-01-147-5225
NSN 6645-01-286-3378
NSN 5990-00-402-7721
NSN 6620-00-439-2442