Parker 10 Btx-s Steel Flared Tube Nut 5/8 in Od 37 Deg

Product Description

The PARKER 10 BTX-S is a steel flared tube nut designed for use in hydraulic and fluid-system tubing connections. It accepts a 5/8 inch tube OD with a 37-degree flare angle, forming a leak-resistant mechanical seal when paired with a matching flare fitting. The nut measures 0.98 inches in overall length and weighs 0.092 pounds. Rated for a maximum working temperature of 500 degrees F (260 degrees C), it is suited for high-temperature fluid-line applications. Licensed plumbers, hydraulic system technicians, and HVAC/R professionals typically install this component in metal tubing assemblies where a JIC-style or SAE flare connection is required.

This tube nut is used in residential and commercial fluid systems wherever a 5/8 inch OD flared tube connection is specified. Common applications include hydraulic lines, refrigeration tubing, fuel lines, and compressed-air or industrial fluid circuits. It is sold individually and is a direct replacement or spare for any assembly requiring a standard 37-degree flare nut at this tube size.

Key Features

• Steel construction for durability in high-pressure and high-temperature fluid systems
• 37-degree flare angle compatible with JIC and SAE flare fittings
• Accepts 5/8 inch tube OD for a secure, leak-resistant connection
• Rated to 500 degrees F (260 degrees C) maximum working temperature
• Meets ISO 8434-2, SAE J514, and SAE 070110 standards
• Compact overall length of 0.98 inches for tight-space installations

Compatibility

Designed as an OEM-style replacement flare nut for fluid-system tubing assemblies requiring a 5/8 inch OD, 37-degree flare end connection per ISO 8434-2 and SAE J514 specifications.

Installation Notes

Installation is performed by a licensed plumber, hydraulic technician, or HVAC/R technician. Always depressurize and bleed the fluid system completely before removing or installing tube fittings. Use a calibrated torque wrench and follow the torque specifications published by PARKER for this fitting series. Do not over-tighten — excessive force on flare nuts can crack the tube flare and cause connection failure.