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Military Cadmium Plated Steel Washer AN970 Series for Aeronautical Applications

UsedMilitary FastenersConsumablesUnited States

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Military Fasteners
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Used
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Product description

Cadmium plated steel AN970 washers with precise dimensions, rectangular cross-section, for aerospace & military fastening.

This AN970 series cadmium plated steel washers are military-grade fasteners designed for aeronautical and precision engineering applications requiring corrosion resistance and mechanical reliability. Key technical specifications include:

  • Material: Steel conforming to federal standard 66 single material response
  • Surface Treatment: Cadmium plating, Cl 3 federal specification type 1 (QQ-P-416) ensuring enhanced corrosion protection essential in aerospace environments
  • Cross Sectional Shape: Rectangular for optimized load distribution in fastening assemblies
  • Center Hole Shape: Round, precisely machined to standardized diameters for compatibility with corresponding bolt sizes
  • Edge Shape: Round for stress reduction and improved assembly integrity
  • Thickness & Diameter Specifications: Vary by model, e.g.:
  • AN970-8: Thickness 0.109", hole diameter 0.515", outer diameter 2.000"
  • AN970-6: Thickness 0.053"–0.073", hole diameter 0.380"–0.400", outer diameter 1.615"–1.635"
  • AN970-5: Thickness 0.053"–0.073", hole diameter 0.318"–0.338", outer diameter 1.365"–1.385"
  • AN970-4: Thickness 0.053"–0.073", hole diameter 0.255"–0.275", outer diameter 1.115"–1.135"

These washers are critical components in military and aerospace fastening systems, widely used in biomanufacturing equipment assemblies and biomedical engineering instrumentation where structural stability and corrosion resistance are mandatory. Their precise dimensions and certified finish meet stringent standards for molecular diagnostics device manufacturing and synthetic biology instrumentation assemblies. This makes them integral in bioprocessing environments that demand durable, high-quality mechanical fasteners.

The AN970 washers support robust load distribution in fastening joints, reducing stress fractures and ensuring reliability in high-performance aerospace and military applications. Their compliance with federal specifications and stringent quality control also makes them suitable for research laboratories focusing on biotechnology device prototyping and clinical diagnostic instrument fabrication.

Overall, the AN970 cadmium plated steel washer series is essential for secure mechanical connections in aerospace, military, and specialized biotechnology sectors needing corrosion-resistant, precision-engineered washers.

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Frequently asked questions

How long does laboratory equipment typically last?

With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.

Can I get service for older equipment?

Yes. Every verified supplier states which service partners cover the instrument, and we list that alongside the offer.

Where can I buy parts?

Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.

What is the typical lead time for refurbished equipment?

Two to six weeks, depending on refurbishment scope and whether calibration is included.

Does laboratory equipment ship internationally?

We ship to 38 countries. Crating and customs handling are quoted with the instrument.

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Last updated 19 October 2026