New / Old Stock, Prevailing Torque 3/4-10 Flanged UNC G Hex Lock Nuts Distorted Thread UNA, Part Number NT-9519-CB.  Each bid quantity is for a Lot of Ten (10) Pieces.  You may bid / buy any number of lots, up to the total quantity available above.

These were purchased at an industrial liquidation last year, and they were in the original factory boxes.

According to the calipers:

Thickness:  .798"

Hex size / Wrench size: 1-1/8"

Flange diameter:  1.553"

Threads:  3/4-10 (diameter - threads per inch)