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 5998-00-553-3398
NSN 6610-01-513-7368
NSN 5915-01-579-3650
NSN 5905-01-269-1094
NSN 5985-01-587-9249
NSN 5895-00-835-8969
NSN 6220-00-101-8799
NSN 5975-01-114-1519
NSN 6130-01-207-0153
NSN 5905-01-492-6248
NSN 6645-01-251-7346
NSN 2925-01-198-7528