Dyed blue
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 6105-01-472-5328
NSN 6685-01-094-7916
NSN 5998-01-183-3983
NSN 5975-01-304-0080
NSN 6130-01-020-0582
NSN 6610-00-100-1195
NSN 4140-00-555-3856
NSN 2925-01-394-5650
NSN 5915-01-468-3828
NSN 5990-01-599-7106
NSN 5950-01-139-4371
NSN 5935-01-437-9286