Parker 8 Btx-s Steel Flared Tube Nut 1/2 in 37 Deg

Product Description

The PARKER 8 BTX-S is a steel flared tube nut designed for use in hydraulic and fluid system tubing connections. It mates with a 37-degree flare fitting to form a leak-resistant joint on 1/2-inch OD tubing. Constructed from steel, it is rated for a maximum working temperature of 500 degrees F (260 degrees C), making it suitable for demanding industrial and mechanical service environments. With an overall length of 0.85 inches and a weight of 0.01 pounds, it is a compact, single-use hardware component. Licensed plumbers, HVAC technicians, and pipefitters install this fitting as part of flared tubing assemblies in refrigerant, hydraulic, and fuel lines.

This tube nut is used wherever 37-degree flare connections are specified in fluid conveyance systems. Common applications include refrigeration and air conditioning line sets, hydraulic tubing assemblies, and fuel system plumbing. It is appropriate for both light commercial and industrial installations where flare-style fittings are required per system design. The 37-degree flare angle conforms to SAE J514 and ISO 8434-2 standards, ensuring interoperability with compatible flare fittings in those specification families.

Key Features

• Steel construction for durability in high-temperature fluid system applications
• 37-degree flare angle per SAE J514 and ISO 8434-2 standards
• Fits 1/2-inch OD tubing for precise, leak-resistant connections
• Rated to 500 degrees F (260 degrees C) maximum working temperature
• Compact profile at 0.85 inches overall length
• Conforms to UNSPSC code 27121707 for standardized procurement

Compatibility

Designed for use with 37-degree flare fittings on 1/2-inch OD tubing in hydraulic, refrigerant, and fuel line systems conforming to SAE J514 or ISO 8434-2 specifications.

Installation Notes

This tube nut should be installed by a qualified technician familiar with flare fitting assembly procedures. Before installation, de-energize or depressurize the system completely and verify that tubing is properly flared to the 37-degree angle using a calibrated flaring tool. Hand-tighten the nut onto the fitting body before applying a wrench to avoid cross-threading. Follow applicable SAE, ISO, or system manufacturer torque guidelines for the fitting size and material.