Value Collection ZMSCV70337 Viton O-ring Dash 337

Product Description

The VALUE COLLECTION ZMSCV70337 is a Dash 337 Viton (fluoroelastomer) O-ring with a round cross section, designed for static and dynamic sealing applications in plumbing, HVAC, and industrial service. It measures 3 inches inside diameter, 3.375 inches outside diameter, and 0.1875 inches thick. The fluoroelastomer compound provides good resistance to petroleum products, low compression set, and high-temperature resistance up to 400 degrees F, with a lower service limit of -15 degrees F. Hardness is rated at 70 Shore A. Licensed trades and maintenance professionals install this seal in flanges, fittings, pumps, and valve assemblies where chemical and thermal compatibility is required.

This O-ring suits residential and commercial applications involving petroleum-based fluids, fuels, lubricants, and hydraulic media. Its wide spectrum of chemical compatibility and low gas permeability also make it appropriate for vacuum service lines and high-temperature fluid circuits. The Dash 337 designation is a standard AS568 size reference, allowing straightforward cross-reference to OEM groove specifications. Sold in a package of 5 units.

Key Features

• Fluoroelastomer (Viton) compound with good resistance to petroleum products
• High-temperature resistance rated to 400 degrees F; low-temperature limit of -15 degrees F
• 70 Shore A hardness rating for reliable sealing under compression
• Low compression set for long-term seal integrity in static applications
• Low gas permeability makes it suitable for vacuum service lines
• Round cross section, standard AS568 Dash 337 sizing for easy groove matching

Compatibility

Compatible with petroleum products, fuels, lubricants, and hydraulic fluids. Suitable for use in systems where good chemical resistance and high-temperature performance are required. Verify groove dimensions against inside diameter, outside diameter, and cross-section thickness before installation.

Installation Notes

Installation is performed by licensed plumbers, HVAC technicians, or qualified maintenance personnel. De-pressurize and drain the system before removing or installing any seal. Inspect the groove for burrs, corrosion, or damage that could compromise the seal. Lubricate the O-ring with a compatible fluid during assembly to prevent tearing during installation; do not over-stretch the ring beyond its designed groove dimensions.