Value Collection ZMSCV70357 Viton O-ring Dash 357

Product Description

The VALUE COLLECTION ZMSCV70357 is a Dash 357 Viton (fluoroelastomer) O-ring with a round cross section, designed for static and dynamic sealing applications across HVAC, plumbing, hydraulic, and industrial fluid systems. It measures 5.5 inches inside diameter, 5.875 inches outside diameter, and 0.1875 inches thick. The fluoroelastomer compound delivers a 70 Shore A hardness rating, suitable for high-temperature environments up to 400 degrees F and cold-weather service down to -15 degrees F. This part is installed by licensed HVAC technicians, plumbers, and industrial maintenance professionals requiring dependable seals in petroleum-based fluid systems.

This O-ring is suited for residential and commercial applications where exposure to petroleum products, fuels, oils, and hydraulic fluids is expected. Its wide chemical compatibility and low gas permeability make it appropriate for vacuum service lines and high-temperature sealing points in refrigeration, fuel delivery, and hydraulic circuit assemblies. The Dash 357 designation follows AS568 standard sizing, making it a straightforward dimensional match for equipment calling out that dash number. Each package contains 2 O-rings.

Key Features

• Fluoroelastomer (Viton) compound rated from -15 degrees F to 400 degrees F operating range
• 70 Shore A hardness for low compression set and durable sealing under sustained load
• Good resistance to petroleum products, fuels, and oils
• Low gas permeability suitable for vacuum service applications
• Wide spectrum of chemical compatibility for diverse fluid system environments
• Round cross section; Dash 357 AS568 standard sizing for direct dimensional replacement

Compatibility

Compatible with petroleum products and petroleum-based fluid systems. Designed as a Dash 357 O-ring replacement for any application referencing AS568 Dash 357 dimensional specifications where a fluoroelastomer compound is required.

Installation Notes

De-energize and depressurize the system fully before removing any sealing components. Inspect the O-ring groove for nicks, scoring, or contamination before installing the new ring. Lubricate the O-ring with a compatible fluid or grease to ease installation and prevent tearing during assembly. Installation should follow applicable system manufacturer guidelines and relevant industry codes for the system type being serviced.