Value Collection ZMSCV70121 Viton O-ring Dash 121 50-pack

Product Description

The VALUE COLLECTION ZMSCV70121 is a Dash 121 Viton fluoroelastomer O-ring designed for sealing applications that demand resistance to high temperatures, petroleum-based fluids, and a wide range of chemicals. Measuring 1.0625 inches inside diameter, 1.25 inches outside diameter, and 0.0937 inches thick with a round cross-section, this O-ring carries a Shore A hardness of 70. It performs reliably from -15 degrees F up to 400 degrees F, making it suitable for demanding industrial and mechanical sealing environments. Licensed tradespeople including plumbers, HVAC technicians, and industrial mechanics install these as static or dynamic seals in fluid and gas systems. Each order contains 50 pieces.

This O-ring is suited for use in systems handling petroleum products, hydraulic fluids, and other media compatible with fluoroelastomer compounds. The Dash 121 designation places it in a standard AS568 size series, making it a common fit for valves, fittings, pumps, cylinders, and similar components found in residential and commercial mechanical systems. Its low gas permeability and suitability for vacuum service extend its usefulness to refrigeration and HVAC applications where seal integrity is critical. The black color is standard for Viton compounds of this hardness rating.

Key Features

• Fluoroelastomer (Viton) material offers wide-spectrum chemical compatibility
• Operating range of -15 degrees F to 400 degrees F suits high-temperature service
• Good resistance to petroleum products and hydraulic fluids
• Low compression set maintains sealing force over extended service life
• Low gas permeability and rated for vacuum service
• Round cross-section, standard Dash 121 AS568 sizing for straightforward replacement

Compatibility

Compatible with systems and components handling petroleum products and chemicals within the rated temperature range. Conforms to standard Dash 121 AS568 sizing and fits valves, pumps, fittings, and cylinders designed for that nominal size. Not FDA approved; not intended for food-contact applications.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or industrial mechanics during valve, pump, or fitting service. Always de-energize or depressurize the system and allow components to cool before replacing seals. Lubricate the O-ring with a compatible grease or fluid before installation to prevent tearing during assembly. Inspect the gland for nicks or corrosion that could compromise the seal.