Ham-let 3600078 Compression Tube Nut 3/8 in Fnpt Brass

Product Description

The HAM-LET 3600078 is a brass compression tube nut designed for use in compression tube fittings requiring a 3/8 inch thread size and 3/8 inch tube outside diameter with a female NPT end connection. Machined from brass and conforming to ASTM B68 and ASTM B75 standards, this nut delivers a maximum working pressure of 2600 psi. The overall length is 0.56 inches, and the part weighs 0.04 pounds. It is installed by plumbers, pipefitters, and HVAC technicians on instrumentation, fluid, and gas lines where a reliable compression connection is required.

This compression tube nut is suited for residential and light commercial plumbing, HVAC refrigerant lines, instrumentation tubing, and other fluid-handling systems that use standard compression-style tube fittings. It is cross-referenced to Swagelok part number B-602-1, making it a direct interchange option for applications that currently specify that part. Installation is appropriate where FNPT thread engagement and compression tube retention are needed in low-profile, space-constrained piping runs.

Key Features

• Brass construction conforming to ASTM B68 and ASTM B75 material standards
• Maximum working pressure of 2600 psi for demanding fluid and gas service
• 3/8 inch thread size with female NPT thread standard
• 3/8 inch tube outside diameter compatibility for standard compression fittings
• Compact overall length of 0.56 inches for tight installation spaces
• Cross-referenced to Swagelok part number B-602-1

Compatibility

Compatible with compression tube fitting assemblies using 3/8 inch OD tubing and 3/8 inch FNPT connections. Cross-referenced to Swagelok part number B-602-1 for direct interchange use.

Installation Notes

Installation is typically performed by licensed plumbers or pipefitters. Shut off and depressurize the system fully before removing or installing compression fittings. Use appropriately sized wrenches and avoid over-tightening, which can deform the ferrule or damage the tube. Verify thread engagement and system compatibility before returning the line to service.