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Black forged steel pipe cap with female NPT threads

Zoro Select

Zoro Select 1MNE6 Cap 1-1/2" Pipe FNPT Black Forged Steel

SKU CH-MFZV-694EE

Black forged-steel cap with 1-1/2 inch female NPT threads seals pipe ends securely

  • Forged steel construction resists high pressure and impact
  • Female NPT threads create a secure, leak-tight seal
  • Black finish protects against corrosion in harsh environments
  • 1-1/2 inch nominal size fits standard piping systems
  • Round cap design closes pipe ends cleanly and permanently

Zoro Select 1-1/2" Pipe Cap

This forged steel cap closes a 1-1/2 inch nominal pipe size using a female NPT connection. The black finish protects the steel surface in plumbing installations. It is supplied without pre-applied thread sealant or an included seal.

For Plumbers Capping Female Threaded Ends

The part suits installers who need a durable forged steel closure for a 1-1/2 inch pipe with FNPT threads. Buyers requiring a male-threaded plug, a different nominal size, or a fitting that ships with sealant already applied should select another product.

Female NPT Thread Type

The connection uses a female National Pipe Taper thread to receive a male-threaded pipe or nipple. This thread standard determines whether the cap mates correctly with the existing piping system. Verify the thread type on the pipe before ordering.

Highlights

  • Forged steel construction resists high pressure and impact
  • Female NPT threads create a secure, leak-tight seal
  • Black finish protects against corrosion in harsh environments
  • 1-1/2 inch nominal size fits standard piping systems
  • Round cap design closes pipe ends cleanly and permanently

Specifications

BrandZORO SELECT

Questions about this item

Does this 1-1/2 inch FNPT forged steel cap require a male NPT pipe of the same nominal size to seal properly?

Yes, the female NPT threads are cut for 1-1/2 inch nominal pipe size, so a matching male NPT pipe or fitting is needed for a tight seal.

Will the black forged steel material cause galvanic corrosion if I thread it onto older brass or copper piping?

Direct contact between steel and copper alloys can accelerate corrosion; using a dielectric union or brass transition fitting between dissimilar metals is recommended.

After installation, how can I verify the cap is holding pressure without a visible leak?

Pressurise the system to its working pressure and inspect the joint for moisture or bubbles; a dry, bubble-free thread joint confirms the cap is sealing as intended.

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