Fine knurl on both bearing surfaces
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 5990-01-433-3786
NSN 5950-00-302-1751
NSN 5920-01-474-8172
NSN 6620-01-067-8336
NSN 5996-01-650-5762
NSN 6645-01-603-9331
NSN 5855-01-580-0645
NSN 5925-01-425-0959
NSN 5950-00-475-2379
NSN 6685-01-646-1250
NSN 5935-00-700-1002
NSN 5960-00-907-4194