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One-inch stainless steel threaded union with female NPT ends

Value Brand

Value Brand 1 in FNPT 316 Stainless Steel Threaded Union Class 3000

SKU CH-5F1P-92XXB

Connects two pipe ends without rotation using corrosion-resistant 316 stainless steel rated for 2900 psi at 100°F

  • Corrosion-resistant 316 stainless steel withstands harsh environments
  • Class 3000 rating handles up to 2900 psi at 100°F
  • Threaded union connects pipes without rotation for quick maintenance
  • Meets ASTM A182 and ANSI/ASME B1.20.1 standards
  • Female NPT threads on both sides fit 1-inch pipe

Application & User

This 1-inch FNPT threaded union joins two pipe ends without rotating either length, making it suitable for maintenance points in process piping. It is built for installers who need a corrosion-resistant 316 stainless steel joint rated to Class 3000 service conditions.

Interface Limits

The connection uses ANSI/ASME B1.20.1 taper threads at 11 1/2 threads per inch on both sides, so sealing relies on proper thread engagement and compatible sealant. Pressure capability is 2900 psi at 100°F per the Class 3000 rating under MSS SP-83.

Compatibility Check

Verify that the mating pipes are 1-inch NPT male threads and that the system design pressure and temperature stay within the 2900 psi at 100°F envelope. Confirm the 316 stainless material is acceptable for the fluid media and that ASTM A182 conformance meets any project specifications.

How it compares

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

Price $49.99
Pricier than about 81% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameZORO SELECT

Questions about this item

Should I choose the 1 in FNPT 316 stainless steel union or a different size?

Select the 1 in FNPT size when your pipe has a 1-inch nominal bore and 11 1/2 threads per inch; other sizes will not match those threads.

What does the 2900 psi @ 100°F rating mean when the union is installed?

It is the maximum working pressure at 100 °F; at higher temperatures the allowable pressure decreases.

How do the ANSI/ASME B1.20.1 threads and Class 3000 rating work together?

The threads follow ANSI/ASME B1.20.1 for NPT sealing, while Class 3000 defines the pressure boundary for 316 stainless steel per ASTM A182 and MSS SP-83.

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