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.