My Account
Shopping Cart

Brass Fittings M3438 Hex Reducer Nipple 3/4 Inch x 3/8 Inch NPT

Manufacturer

Brass Fittings

<h3>About Brass Fittings by Midland Industries</h3><p>When it comes to reliable fluid and gas transfer, the quality of your fittings matters as much as the quality of your pipe or hose. <strong>Brass Fittings</strong> — rooted in the Jamnagar manufacturing tradition and distributed through Midland Industries — represents a benchmark in precision-engineered connection hardware for industrial, automotive, plumbing, and outdoor equipment applications.</p><p>Jamnagar, India, has long been recognized as one of the world's premier centers for brass component manufacturing, and this brand draws on that deep metallurgical expertise. Using state-of-the-art CNC machinery and rigorous quality control practices, Brass Fittings produces components that meet demanding dimensional tolerances and pressure ratings across a wide range of thread standards — including NPT, NPTF, BSP, and metric — making them compatible with both domestic and international systems.</p><h3>A Comprehensive Fittings Lineup</h3><p>The core of the catalog is an extensive range of <a href="/7273-brass-fittings-pipe-fitting-17358">pipe fittings</a>, encompassing elbows, tees, unions, couplings, bushings, nipples, caps, and crosses in a variety of sizes and configurations. These are the workhorses of any plumbing, pneumatic, or hydraulic system — connecting runs of pipe securely while maintaining leak-free performance under pressure.</p><p>For applications where both pipe and hose connections are needed in the same system, the brand&apos;s <a href="/7273-brass-fittings-brass-bronze-pipe-hose-fittings-201742">brass and bronze pipe &amp; hose fittings</a> offer versatility and corrosion resistance in a single product family. Bronze alloys are particularly valued in marine, chemical, and high-humidity environments where dezincification resistance is critical. Whether you need hose barbs, flare fittings, compression fittings, or forged adapters, this lineup covers the full spectrum of connection styles.</p><p>Recognizing that not every application calls for metal, Brass Fittings also offers a selection of <a href="/7273-brass-fittings-nylon-pipe-hose-fittings-200724">nylon pipe &amp; hose fittings</a> designed for lighter-duty fluid transfer needs. Nylon fittings are a smart choice where chemical compatibility, weight savings, or electrical non-conductivity are priorities — common requirements in automotive fuel systems, agricultural equipment, and marine auxiliary systems.</p><h3>Why Choose Brass Fittings?</h3><ul><li><strong>Material quality:</strong> Free-cutting brass alloys (such as IS 319 / C36000) are used throughout, delivering excellent machinability and long service life.</li><li><strong>Wide thread compatibility:</strong> NPT, NPTF, BSP, metric, and other thread forms are available to suit virtually any system.</li><li><strong>Broad application range:</strong> Suitable for water, gas, oil, pneumatic, and hydraulic service across automotive, industrial, and residential settings.</li><li><strong>Finish options:</strong> Natural brass, nickel-plated, and tin-plated finishes are available depending on the environmental demands of the application.</li><li><strong>Extensive SKU depth:</strong> With hundreds of parts across multiple fitting types and sizes, it&apos;s easy to source everything needed for a single project from one brand.</li></ul><p>Whether you are maintaining a vehicle&apos;s fuel or coolant lines, plumbing a workshop compressor, or outfitting marine equipment, Brass Fittings delivers the precision and durability that professionals and serious DIYers depend on.</p>

Part Number

M3438
07/13/2036 5:09 AM
Sale Price

$2.34

In Stock (10+)

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Brass Fittings M3438 is a hex reducer nipple designed to connect pipes of two different sizes in plumbing, air, and fluid transfer applications. This fitting features 3/4 inch NPT male threads on one end and 3/8 inch NPT male threads on the other, allowing you to reduce pipe diameter efficiently in your system.

Key Features:

  • Constructed from durable brass for excellent corrosion resistance and longevity
  • 3/4 inch to 3/8 inch NPT thread configuration for secure, leak-resistant connections
  • Hexagonal center section allows for easy installation and removal with standard wrenches
  • Suitable for water, air, oil, and other compatible fluids
  • Complies with standard pipe thread specifications for universal compatibility

This reducer nipple is ideal for residential and commercial plumbing systems, compressed air lines, hydraulic applications, and general-purpose fluid transfer where a pipe size reduction is needed. The brass construction provides reliable performance in a wide range of operating conditions.

Products specifications

Size

3/4" x 3/8"

Nice website

Ordered some parts the other day and was impressed, will see if it was a fluke.

Best price and super easy to use.

Will shop agaib

Super easy site to navigate, and fantastic prices.

It was very fast and easy to get around. Good Job with you site.

I have been successful placing my order today.

Great

Prices are good if u order more then one type of thing shipping goes way up

Very easy to order, updated regularly on status, great pricing and product

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy