Points of hexagon to have v shaped notch from 0.020 to 0.030 deep by 90.0 degrees
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 5999-01-330-6154
NSN 5905-01-411-6520
NSN 5930-01-385-4774
NSN 6685-01-150-9255
NSN 5965-00-934-3495
NSN 6150-00-683-5349
NSN 5998-00-670-0369
NSN 6220-01-158-6556
NSN 5945-01-194-8594
NSN 5990-00-067-6791
NSN 5935-01-302-4936
NSN 5930-01-530-8013