Parker PT-00373 Flareless Bite-type Tube Cap 1/4 in Od

Product Description

The PARKER PT-00373 is a flareless bite-type tube cap designed to terminate or seal a 1/4-inch OD tube in hydraulic, pneumatic, or fluid-control line applications. The bite-type design uses a ferrule that bites into the tube wall when tightened, creating a secure, leak-resistant seal without the need for a flared tube end. This fitting is commonly installed by HVAC technicians, plumbers, and industrial pipefitters when capping off unused or temporarily inactive tube runs. The cap is compact and suited for tight spaces where a clean tube termination is required.

This tube cap is appropriate for residential and light commercial fluid-line systems where flareless compression-style fittings are standard. It is well-suited for capping stainless steel, copper, or compatible alloy tubing in refrigerant, pneumatic control, or instrumentation line applications. Each package contains 5 caps, making it practical for service calls or panel builds requiring multiple termination points in a single session.

Key Features

• Flareless bite-type design eliminates the need for tube flaring tools or pre-flared tubing ends
• 1/4-inch tube OD sizing for compatibility with standard small-bore tube lines
• Compact cap profile suitable for installation in confined or congested line runs
• Packaged in quantities of 5 per unit for efficient multi-point service work
• Leak-resistant ferrule-compression seal when properly torqued to fitting specifications

Compatibility

Designed as an OEM-style flareless bite-type cap for 1/4-inch OD tubing used in hydraulic, pneumatic, and fluid-control line systems where Parker-style flareless compression fittings are installed.

Installation Notes

Installation is typically performed by licensed HVAC technicians, pipefitters, or instrumentation specialists. Before installing, depressurize and isolate the line completely. Flareless bite-type caps require the ferrule to be properly seated by tightening to the fitting manufacturer's specified procedure on first assembly. Do not reuse a previously bitten ferrule on a new tube segment, as the bite seat is deformed to the original tube and may not seal reliably on a second installation.