Fairview s6768-4a Steel Compression Adapter 1/4 Od X 1/8 Mpt

Product Description

The FAIRVIEW s6768-4a is a steel compression adapter fitting designed to connect 0.25-inch OD tubing to a 0.125-inch male pipe thread (MPT) port. This fitting creates a secure, leak-resistant mechanical connection without the need for solder or adhesive. It is commonly found in HVAC, refrigeration, and plumbing applications where a transition between compression tubing and a threaded port is required. Licensed plumbers, HVAC technicians, and pipefitters install this type of adapter during system assembly, repair, or retrofit work. The all-steel construction provides durability in both pressure and vibration-prone environments.

This compression adapter is suited for residential and light commercial systems where 0.25-inch OD tubing terminates at a 0.125-inch MPT connection point. Typical applications include refrigerant line accessories, instrument tubing, control line connections, and small-bore gas or fluid distribution systems. It is installed in-line at equipment ports, manifolds, or control devices that accept 0.125-inch male pipe thread fittings.

Key Features

• Steel construction for strength and durability in pressurized systems
• Compression-style connection requires no solder or adhesive
• 0.25-inch OD tubing inlet for standard small-bore tubing compatibility
• 0.125-inch MPT outlet for direct connection to threaded ports
• Compact adapter form factor for tight installation spaces

Compatibility

Designed as an OEM-style replacement or new-installation compression adapter for systems using 0.25-inch OD tubing transitioning to 0.125-inch male pipe thread ports.

Installation Notes

This fitting is installed by licensed plumbers or HVAC technicians. Shut off system pressure and depressurize the line before removing or installing any compression fitting. Hand-tighten the compression nut first, then use a wrench to achieve a snug, leak-free connection — avoid over-tightening, which can damage the ferrule or tubing. Verify thread compatibility and confirm the mating port accepts 0.125-inch NPT before installation.

Technical Specifications

• Tubing OD: 0.25 inches
• Thread Size: 0.125 inches MPT
• Connection Type: Compression x Male Pipe Thread
• Material: Steel

Standard Information

• Brand: FAIRVIEW
• Manufacturer Part Number: s6768-4a