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Anvil 3/8 in. MPT Black Steel 4-1/2 in. L Nipple

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Discover the reliability you demand in every piping connection with the Anvil 3/8 in. MPT Black Steel 4-1/2 in. L Nipple. Designed to stand up to tough shop and field use, this stu…

Anvil MPN 8700137857 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $5.99. Our online price is $6.99.
$6.99
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About Product Overview

Discover the reliability you demand in every piping connection with the Anvil 3/8 in. MPT Black Steel 4-1/2 in. L Nipple. Designed to stand up to tough shop and field use, this sturdy steel nipple blends a compact 4-1/2 inch length with precise 3/8 inch male pipe thread (MPT) ends for secure, leak-resistant joins in a variety of piping projects.

  • Threaded for compatibility: features 3/8 in. MPT ends that thread cleanly into compatible fittings, delivering a solid seal when paired with PTFE tape or pipe-joint compound.
  • Compact, versatile length: at 4-1/2 inches, it provides the right amount of reach for tight runs and awkward angles without excess bulk.
  • Durable construction: built from robust steel to resist daily wear in mechanical spaces, workshops, and residential installations.
  • Practical finish: black steel finish offers a professional look and a protective layer suitable for dry, indoor environments and dry piping runs.
  • Ideal use cases: extend small-diameter lines in water, air, or low-pressure systems where 3/8 in. fittings are standard, including DIY projects, maintenance tasks, and light commercial applications.

Why choose this Anvil nipple? It provides a dependable, consistent connection point in piping assemblies, reducing the risk of leaks and misalignment that can occur with generic connectors. The 3/8 inch MPT threads ensure compatibility with a wide range of fittings, adapters, and couplings, while the 4-1/2 inch length accommodates longer runs and flexible installation layouts.

Installation tips: ensure threads are clean before assembly, apply PTFE tape or appropriate pipe-joint compound to ensure a tight seal, and tighten with a wrench to the manufacturer’s recommended torque. Always align fittings properly to avoid crossthreading and verify the joint after assembly with a visual check and pressure test per your local code requirements.

Whether you’re remodeling a radiator line, extending a shop air system, or connecting components in a compact plumbing run, the Anvil 3/8 in. MPT Black Steel 4-1/2 in. L Nipple delivers the dependable performance you need with a straightforward, durable design.

The Details Specifications

Brand Anvil
SKU 45251
UPC 690291041341
Unit 0
Case Pack Quantity 25 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 0 × 0 × 5
Weight 0 lbs
Cubic Feet 0.00271 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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