Nas523 Rivet Code Pdf -

Aerospace rivets are made from various alloys to match the strength and thermal properties of the structures they join. The material is typically represented by a letter code within the NAS523 system: : 1100 Aluminum (pure aluminum, low strength).

: This final quadrant provides the shank length in 1/16-inch increments. A rivet marked with a in this corner would be 6/16" (or 3/8") long. Why This Matters

The significance of NAS523 is evident in numerous aerospace applications. Official part listings for aircraft fuselage sections routinely include notations such as "RIVET CODE PER NAS523" and "IDENTIFY PER HP8-5 TYPE I, CLASS 3".

[Top Quadrant] Rivet Part Number │ [Left Quadrant] ──┼── [Right Quadrant] Rivet Diameter Rivet Grip Length │ [Bottom Quadrant] Location / Countersink nas523 rivet code pdf

Boeing incorporates the NAS523 standard into its engineering documentation system. The company maintains a cross-reference table that maps NAS523 fastener codes to specific part numbers in its BACD2074 standard. For example, a fastener code shown on a Boeing engineering drawing corresponds to a specific fastener part number listed in the BACD2074 fastener chart.

: Tells the operator that the code follows the National Aerospace Standard coding system. The Letter Codes: Body & Head Styles

The NAS523 rivet code PDF covers several key components, including: Aerospace rivets are made from various alloys to

The NAS523 rivet code PDF explicitly states a shear strength of when heat-treated to the T6 condition. An aluminum NAS523 (if incorrectly substituted) would fail at 38,000 psi.

Here is how the code breaks down:

For full technical tables and visual charts, detailed PDF guides are available through professional repositories: NAS523 Rivet Identification Guide | PDF - Scribd A rivet marked with a in this corner

The first number following the letters indicates the rivet shank diameter, measured in . -3 = 3/32" diameter -4 = 4/32" (or 1/8") diameter -5 = 5/32" diameter -6 = 6/32" (or 3/16") diameter 4. The Grip Length Code (Second Number)

2024 aluminum alloy, identified by two raised dashes; known as "icebox rivets," they must be heat-treated and refrigerated before use. D: 2017 aluminum alloy, marked with a raised dot. Installation Specifications