Value Collection ZMSCTST333 O-ring Dash 333 Ptfe

Product Description

The VALUE COLLECTION ZMSCTST333 is a Dash 333 O-ring made from polytetrafluoroethylene (PTFE), a high-performance fluoropolymer seal material. It features a rectangular cross section and measures 2.518 inches inside diameter, 2.884 inches outside diameter, and 0.0625 inches thick. With a medium durometer hardness rating of 55 and a working temperature range of -65 degrees F to 500 degrees F, this O-ring is suited for demanding sealing applications where standard elastomers fail. Licensed trades including plumbers, HVAC technicians, and industrial maintenance professionals install PTFE O-rings where chemical resistance and wide thermal tolerance are required.

This O-ring is used in static and low-motion dynamic sealing applications across residential and commercial systems. Its PTFE construction makes it appropriate for use with aggressive chemicals, steam lines, and high-temperature fluid systems where nitrile or EPDM materials would degrade. It is a practical choice for pump housings, valve bodies, and threaded fittings requiring a reliable face or groove seal in corrosive or high-heat environments. Each package contains 10 O-rings.

Key Features

• PTFE material provides broad chemical resistance and high-temperature performance
• Working temperature range from -65 degrees F to 500 degrees F
• Rectangle cross section for consistent groove seating and face sealing
• Medium hardness rating of 55 durometer for controlled compression under load
• Dash 333 designation for straightforward cross-reference and replacement sourcing
• Sold in packs of 10 for service stock and multi-unit repairs

Compatibility

Designed as an OEM-style replacement or service seal for applications requiring a Dash 333 PTFE O-ring with a 2.518 inch inside diameter and rectangular cross section.

Installation Notes

Licensed plumbers and HVAC technicians should de-pressurize and fully drain the system before replacing O-rings in valve bodies or pump housings. Clean and inspect the seating groove for burrs or corrosion before installation. PTFE O-rings should not be lubricated with petroleum-based compounds, as compatibility with system fluids should be verified prior to installation. Follow applicable IPC or IFGC guidelines for the system being serviced.