Brennan 10445 Steel Flared Tube Cap 1/2 in Od 37 Degree

Product Description

The BRENNAN 10445 is a steel flared tube cap designed to seal hydraulic and fluid power tubing with a 37-degree JIC flare connection. It threads onto a 1/2-inch OD tube end using a 3/4-16 thread and provides a secure, leak-resistant closure for open tube lines during service, storage, or system modifications. Constructed from steel, this cap is suited for use in high-pressure hydraulic circuits, refrigeration lines, and similar fluid systems where a reliable end seal is required. It is installed by hydraulic technicians, plumbers, and HVAC-R service professionals working with JIC flare fittings.

This cap is applicable to residential and commercial fluid systems that use 37-degree JIC flare tube ends with 1/2-inch OD tubing. Typical use cases include capping unused ports during system expansion, protecting open tube ends during equipment storage, and isolating line sections during maintenance. The 3/4-16 thread size is a standard specification in hydraulic and refrigerant-line fittings, making this cap a common service item in mobile equipment, industrial machinery, and HVAC-R applications.

Key Features

• 37-degree JIC flare angle for a leak-resistant seal on standard flare tube ends
• 1/2-inch tube OD and 3/4-16 thread size for direct fitment on matching flare fittings
• Steel construction provides strength and durability in hydraulic and fluid service environments
• Compact cap design for easy installation and removal during service or storage
• Seals open tube ends to prevent contamination and fluid loss during system work

Compatibility

Designed as an OEM-style replacement and service fitting for fluid power and hydraulic systems using 37-degree JIC flare connections with 1/2-inch OD tubing and 3/4-16 thread ends.

Installation Notes

This fitting is installed by hydraulic technicians or service professionals familiar with JIC flare tube connections. Always depressurize and bleed the system before removing or capping any tube end. Thread the cap onto the flare fitting by hand first, then tighten with an appropriate open-end or flare-nut wrench to avoid cross-threading or deforming the flare seat. Do not overtighten, as damage to the flare seating surface will compromise the seal.