Nas523 Rivet Code Chart
You will find these rivets and the need for this Code Chart in the following scenarios:
Where:
Each section of the crosshair corresponds to a specific instruction: Specification Provided Upper Left Nas523 Rivet Code Chart
Example callout on an engineering drawing: NAS523-5-8 → Diameter 5/32”, length 1/2”, 2117-T4, universal head. You will find these rivets and the need