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 5990-01-234-4607
NSN 6150-01-080-1212
NSN 5975-01-112-6062
NSN 6645-01-277-9297
NSN 6130-00-074-5324
NSN 7035-01-411-2900
NSN 5930-01-258-5878
NSN 5895-00-161-9495
NSN 6105-01-061-2191
NSN 5960-01-367-6153
NSN 5960-01-322-1337
NSN 7035-01-209-2431