Value Collection ZMSCV70203 Viton O-ring Dash 203 25-pack

Product Description

The VALUE COLLECTION ZMSCV70203 is a Dash 203 Viton (fluoroelastomer) O-ring packaged in quantities of 25. It measures 0.313 inches inside diameter, 0.563 inches outside diameter, and 0.125 inches thick with a round cross section. Rated at 70 Shore A hardness, this O-ring handles operating temperatures from -15 degrees F to 400 degrees F, making it well suited for high-heat and chemically aggressive service environments. It delivers low compression set, good vacuum service performance, and low gas permeability. HVAC technicians, plumbers, and industrial mechanics use this O-ring for fluid and gas sealing applications where petroleum product exposure is expected.

This O-ring is appropriate for residential and commercial service applications involving petroleum-based fluids, hydraulic media, and similar chemical environments. Its wide spectrum of chemical compatibility makes it a practical choice for refrigeration fittings, fuel system connections, and hydraulic couplings. The fluoroelastomer compound maintains sealing integrity at elevated temperatures where standard Buna-N or EPDM compounds would degrade. Each package contains 25 O-rings, supporting service kits, bulk repairs, or fleet maintenance stock.

Key Features

• Fluoroelastomer (Viton) compound rated for -15 degrees F to 400 degrees F continuous service
• 70 Shore A hardness for firm sealing under compression in high-pressure fittings
• Round cross section, Dash 203 standard sizing for consistent fitment
• Good resistance to petroleum products and a wide range of industrial chemicals
• Low gas permeability and suitable for vacuum service applications
• Packaged 25 per unit to support service stock and bulk repair work

Compatibility

Designed as a standard Dash 203 O-ring replacement for use in petroleum-compatible fluid and gas sealing applications across HVAC, plumbing, hydraulic, and industrial systems.

Installation Notes

Installation is typically performed by licensed HVAC technicians, plumbers, or mechanical service technicians. Always depressurize and drain the system before removing or replacing O-rings to prevent fluid or gas release. Inspect the mating groove for nicks, corrosion, or debris before seating the new O-ring. Consult applicable codes such as the IFGC or IPC for gas and plumbing system service requirements.