Nas523 Rivet Code Pdf !!top!!
The NAS523 Rivet Code is a standardized identification system established by the National Aerospace Standards Committee used to specify rivet types and installation requirements on aviation blueprints and assembly drawings. Unlike the standard MS (Military Standard) or AN (Army-Navy) part numbering, the NAS523 code uses a multi-quadrant "crosshair" symbol to consolidate various technical specifications into a single visual locating point. The NAS523 Crosshair Symbol
Material & Finish (implied by NAS523)
NAS523 rivets are typically 2017-T4 aluminum alloy (common for general aerospace use), though other materials exist with suffix letters (e.g., NAS523-6-8C for corrosion-resistant steel). The standard finish is plain or chem-film coated depending on procurement spec. nas523 rivet code pdf
Mistake #3: Assuming All NAS Rivets Share the Same Shear Allowable
The NAS523 rivet code PDF explicitly states a shear strength of 95,000 psi minimum for A286 material when heat-treated to the T6 condition. An aluminum NAS523 (if incorrectly substituted) would fail at 38,000 psi. The NAS523 Rivet Code is a standardized identification
1. AIA – Aerospace Industries Association (Original Publisher)
The AIA holds the copyright for NAS standards. While older standards like NAS523 are sometimes withdrawn or superseded, you can purchase a copy directly from their document distribution partner, IHS Markit (now part of S&P Global). Expect to pay $100-$200 for a digital PDF. The standard finish is plain or chem-film coated