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Stainless steel 1/2 inch FNPT union fitting, silver threaded body

Value Brand

Value Brand 1/2" FNPT 304 SS Union Class 3000

SKU CH-543Y-1N8J5

A 1/2 inch FNPT 304 stainless steel union rated Class 3000 for plumbing systems

  • 304 stainless steel resists corrosion
  • Class 3000 rating handles high-pressure systems
  • 1/2 inch FNPT threads connect standard piping
  • California Proposition 65 chemical warning applies
  • New condition ensures reliable performance

1/2" FNPT 304 SS Union Class 3000

This 1/2-inch female NPT union is manufactured from 304 stainless steel to a Class 3000 pressure rating. It connects two pipe sections in plumbing systems requiring corrosion resistance. The fitting suits industrial and commercial installations where stainless construction is specified.

Installation notes

The union uses standard NPT threads for assembly with compatible pipe or nipples. Thread sealant or tape is required to ensure a leak-free joint on the tapered threads. Over-tightening can damage the stainless threads or distort the sealing faces, so apply appropriate torque.

Suitability

This union fits applications needing a 1/2-inch NPT connection in 304 stainless steel at Class 3000 rating. It is not intended for systems requiring a different thread standard, a larger nominal size, or a higher pressure class. Buyers needing welded ends, socket-weld connections, or alternative alloys should select a different fitting.

How it compares

Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.

Price $27.99
Pricier than about 66% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameZORO SELECT

Questions about this item

How can I confirm the 1/2 in FNPT union is sealing correctly after installation?

Pressurise the line and check the joint for leaks; a properly seated 304 stainless Class 3000 union should hold pressure without weeping.

What components are included with the ZORO SELECT 2UA97 union and what must I supply separately?

The box contains the union body, nut and gasket; you must provide compatible 1/2 in NPT pipe, thread sealant or tape and installation tools.

Which class rating should I choose for a 304 stainless steel union in a 1/2 in FNPT application?

Select the Class 3000 version listed here; it matches the 304 SS material and 1/2 in FNPT size shown in the specifications.

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