<h2>Overview</h2>
<p>The <strong>Western SS-603A CGA-660 nipple</strong> is a precision-engineered inlet fitting designed for industrial refrigerant gas regulators and related equipment. Manufactured by Western Enterprises (Scott Fetzer), this stainless steel component combines durability with reliable thread engagement. The integrated washer ensures secure sealing in demanding HVAC and refrigeration applications where pressure stability and leak-free performance are critical.</p>
<h2>Key Features</h2>
<ul>
<li>Stainless steel construction for corrosion resistance and long service life</li>
<li>CGA-660 connection standard—universal compatibility with refrigerant regulators</li>
<li>Integrated washer for secure installation and reliable sealing</li>
<li>Rated to 3000 psig—suitable for high-pressure gas service</li>
<li>1/4″ NPT male thread for industry-standard piping connections</li>
<li>2-1/4″ length optimized for regulator inlet configurations</li>
</ul>
<h2>Technical Specifications</h2>
<ul>
<li><strong>Part Number:</strong> SS-603A</li>
<li><strong>Manufacturer:</strong> Western Enterprises / Scott Fetizer</li>
<li><strong>Material:</strong> Stainless Steel</li>
<li><strong>Thread Size:</strong> 1/4″ NPT (National Pipe Thread)</li>
<li><strong>Thread Type:</strong> Male (MPT)</li>
<li><strong>Length:</strong> 2-1/4″</li>
<li><strong>Pressure Rating:</strong> Up to 3000 psig</li>
<li><strong>CGA Connection:</strong> CGA-660 (Refrigerant Gas)</li>
<li><strong>Service:<strong> Refrigerant gas inlet applications</li>
<li><strong>Includes:</strong> Integrated washer for sealing</li>
</ul>
<h2>Typical Applications</h2>
<ul>
<li>HVAC/refrigeration regulator inlet connections</li>
<li>High-pressure refrigerant gas system components</li>
<li>Industrial cooling and chiller equipment</li>
<li>Gas recovery and reclamation systems</li>
<li>Commercial refrigeration service and maintenance</li>
</ul>
<h2>Compatibility & Replacements</h2>
<h3>Compatible With</h3>
<ul>
<li>Western Enterprises CGA-660 regulators</li>
<li>Refrigerant gas delivery systems rated for 3000 psig</li>
<li>1/4″ NPT piping and fittings</li>
<li>HVAC and industrial refrigeration equipment</li>
</ul>
<h3>Replaces / Drop-In Replacement For</h3>
<ul>
<li>Western Enterprises SS-603A (direct equivalent)</li>
<li>Legacy CGA-660 inlet nipples in equivalent configurations</li>
</ul>
<h3>Works With</h3>
<ul>
<li>CGA-660 certified regulator assemblies</li>
<li>HVAC service hoses with 1/4″ NPT connections</li>
<li>Standard refrigerant charge and recovery equipment</li>
</ul>
