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Brass Fittings RB1238 Hex Bushing 1/2" x 3/8" NPT Reducing Adapter

Manufacturer

Brass Fittings

<h3>About Brass Fittings</h3><p>When a connection needs to hold — whether in a plumbing system, an engine bay, a fuel line, or a marine application — the material and craftsmanship of the fitting matter enormously. Brass Fittings has built its reputation on exactly that principle: delivering precision-engineered components made from high-quality brass and bronze alloys that stand up to pressure, vibration, and corrosion over the long haul.</p><p>Rooted in the manufacturing tradition of Jamnagar, India — a region recognized globally as a hub for world-class brass component production — and distributed through the established network of Midland Industries, this brand brings together old-world metallurgical expertise and modern machining precision. The result is a broad catalog of fittings, adapters, and accessories trusted by professionals across automotive, industrial, marine, and residential applications.</p><h3>Why Brass and Bronze?</h3><p>Brass and bronze alloys offer a compelling combination of properties that make them ideal for fluid and gas handling systems. They resist corrosion far better than plain steel, machine cleanly to tight tolerances, and create leak-free seals when properly installed. Unlike plastic alternatives, brass and bronze fittings can handle elevated temperatures and higher working pressures, making them the preferred choice in demanding environments.</p><p>At the heart of the Brass Fittings lineup are the brand&apos;s <a href="/7273-brass-fittings-brass-bronze-pipe-hose-fittings-200203">Brass &amp; Bronze Pipe &amp; Hose Fittings</a> — a comprehensive assortment of elbows, tees, couplings, nipples, crosses, adapters, and barbed connectors. Whether you&apos;re routing coolant lines, building a fuel system, or plumbing a compressor, these fittings offer the dimensional consistency and thread quality needed to ensure a proper seal every time.</p><h3>A Complete Fittings Solution</h3><p>Beyond the core brass and bronze lineup, the catalog extends into <a href="/7273-brass-fittings-pipe-fitting-17358">Pipe Fittings</a> that cover a wide range of thread types, configurations, and material grades — giving technicians and builders the flexibility to tackle both standard and specialized installations. From straight pipe nipples to reducing bushings and hex plugs, these components are the backbone of any fluid-routing system.</p><p>No fitting installation is complete without a proper seal on the threads. Brass Fittings addresses this with <a href="/7273-brass-fittings-thread-sealant-tape-17329">Thread Sealant Tape</a> — the go-to solution for creating leak-tight connections on tapered pipe threads. Using the right thread sealant alongside quality brass fittings is a small step that makes a significant difference in long-term reliability.</p><p>Rounding out the lineup are <a href="/7273-brass-fittings-nylon-pipe-to-hose-adapters-200725">Nylon Pipe to Hose Adapters</a>, which bridge the gap between rigid pipe systems and flexible hose runs. These lightweight, corrosion-resistant adapters are particularly useful in applications where dissimilar materials need to be joined cleanly and securely.</p><h3>Built for Professionals and DIYers Alike</h3><p>Whether you&apos;re a professional mechanic, a marine technician, an HVAC installer, or a dedicated DIYer, the Brass Fittings catalog offers the components needed to do the job right. The combination of proven alloy materials, precise machining, and a broad range of configurations makes this brand a reliable one-stop resource for connection hardware across virtually any system.</p>

Part Number

RB1238
09/13/2036 3:33 AM
Sale Price

$4.67

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Brass Fittings RB1238 is a hex bushing reducer designed to connect two pipes of different diameters. This fitting features 1/2-inch male NPT (National Pipe Taper) threads on the outside and 3/8-inch female NPT threads on the inside, allowing you to adapt from a larger to smaller pipe size in plumbing, air, and fluid transfer applications.

Key Features:

  • Durable brass construction for excellent corrosion resistance and longevity
  • 1/2" male NPT x 3/8" female NPT thread configuration
  • Hexagonal head design provides superior grip and torque when using a wrench
  • NPT tapered threads create tighter, more reliable seals than straight threads
  • Class 125 rating suitable for water, gas, oil, air, and steam applications
  • Precision-machined threads ensure proper fit and easy installation

This reducing bushing is ideal for marine, RV, plumbing, pneumatic, and general industrial applications where connecting different pipe sizes is required. The brass material offers excellent ductility at high temperatures and low magnetic permeability, making it versatile for various fluid transfer systems.

Products specifications

Size

1/2" x 3/8"

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great pricing and received my purchase quickly. the box was a bit torn up, but the contents were fine.

Very great to deal with. Phone support is amazing!<br><br>Thanks,<br><br>Chad

Easy shopping

Least expensive around and previous experiences make me not shy to buy from again.

Good website, Thought the fuel jugs would come with a pour spout. They are only the jugs though.

Very fast and easy ordering system. My order was shipped the next day.

Quick and Easy so far.

Thanks full

shipping discount pop-up (2x) was annoying.

Finding what I wanted and price was all good...but after purchasing the item I was not given an estimate on the delivery date

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