Indicates the rivet diameter (in 1/32" increments) and the manufactured head location . The letters N (Near) or F (Far) tell the technician which side of the sheet the head should be placed on.
Aerospace manufacturing demands absolute precision, where a single incorrect fastener can compromise structural integrity. To ensure accuracy on engineering drawings without cluttering blueprints, the aerospace industry relies on a standardized system called the . nas523 rivet code pdf
Two raised dashes on the head. Also an icebox rivet, offering high strength. Indicates the rivet diameter (in 1/32" increments) and
If you need help identifying a specific code from a drawing, let me know: What are the in the code? What is the aircraft type or manufacturer ? Are you looking at a text string or a cross-shaped symbol ? Share public link If you need help identifying a specific code
The Ultimate Guide to NAS523 Rivet Codes: Understanding Aerospace Fastener Symbols
A standard NAS523 rivet callout typically consists of a combination of letters and numbers arranged in a specific quadrant symbol or a linear alphanumeric string. The Alphanumeric Breakdown A standard part number follows this logical sequence: Always begins with NAS523 .
The initial part of the code designates the specific standard number, which dictates the head style (countersunk or universal) and the specific design standard. Common examples include: