Parker 12FSC12N-B Compression Tube Connector Brass

Product Description

The PARKER 12FSC12N-B is a brass compression tube connector designed to create a leak-tight transition between a compression tube end and a female NPT threaded port. The fitting accepts a 3/4-inch outside diameter tube on the compression side and connects to a 3/4-14 female NPT thread on the opposite end. Rated to a maximum working pressure of 1900 psi, this connector is built for demanding fluid and gas line applications. The brass construction provides corrosion resistance and reliable sealing performance across a wide range of media. Plumbers, pipefitters, and mechanical contractors install this fitting where a permanent, pressure-rated tube-to-pipe transition is required.

This connector is suited for residential and light commercial plumbing, instrumentation, hydraulic, and pneumatic systems where a compression-to-FNPT connection is needed. It is commonly installed in process lines, equipment manifolds, and service connections. The 3/4-inch tube size and 3/4-14 NPT thread sizing make it a standard choice for mid-range flow lines requiring a secure, metal-to-metal fitting without additional solder or welding.

Key Features

• Brass construction for corrosion resistance and compatibility with a broad range of fluids
• 1900 psi maximum working pressure rating for high-demand service lines
• Compression x FNPT end connections for a solderless, tool-assisted tube-to-pipe transition
• 3/4-inch tube outside diameter compression end paired with 3/4-14 female NPT thread
• Single-piece package quantity suits individual service calls and low-volume jobs

Compatibility

Designed as an OEM-style compression tube connector for systems requiring a 3/4-inch OD tube to 3/4-14 FNPT threaded port connection. Cross-references Swagelok part number B-1210-7-12.

Installation Notes

Installation is performed by licensed plumbers or qualified pipefitters following applicable IPC and local plumbing code requirements. Before installation, shut off and depressurize the line completely. Use a proper compression fitting tool or appropriately sized wrench to seat the ferrule without over-tightening, which can deform the tube and cause leaks. Inspect the tube end for squareness and burrs before assembly.

WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.