<h3>Saicad Wooden Block Tackle — A-A-59807 · Double Sheave · Oak Shell</h3>

<p><strong>ISO 9001:2015 · ITAR · HUBZone · Proof Load Tested | FOB San Jose CA 95112</strong></p>

<p>Select-grade kiln or air-dried Oak shell. Galvanized gray iron sheaves. High-grade oil-self-lubricating

bronze bushings. 5:1 safety factor. WLL permanently marked per A-A-59807. Notoppling block with

side shackle in link B. Proof load tested 2× WLL. CoC + material certs with every order.</p>

<h4>Key Specifications</h4>

<ul>

  <li>Governing Spec: A-A-59807 — Notoppling Wood Block</li>

  <li>Shell Material: Oak (select grade, kiln/air-dried per §2.1.1)</li>

  <li>Metal Finish: Hot-dip galvanized ASTM A153/A153M</li>

  <li>Wood Finish: Clear lacquer per §2.2.1</li>

  <li>Sheave: Gray iron, galvanized · Bushing: High-grade bronze, oil-self-lubricating</li>

  <li>Center Pin: ASTM A108 · Fasteners: Class 8.8+</li>

  <li>Proof Load: 2× WLL for ≥10 minutes · Assembly withstands 5× WLL</li>

  <li>FOB San Jose, California, USA 95112</li>

</ul>