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 5855-00-361-0167
NSN 4140-01-371-1565
NSN 6685-01-089-8141
NSN 6685-01-398-7371
NSN 6145-01-307-7954
NSN 6320-01-371-3047
NSN 6145-01-424-1346
NSN 5895-01-373-1560
NSN 5998-00-122-1510
NSN 6135-01-205-5965
NSN 6220-00-458-4633
NSN 6650-01-155-3292