Value Collection ZMSCU70008 O-ring Dash 008 Polyurethane

Product Description

The VALUE COLLECTION ZMSCU70008 is a Dash 008 polyurethane O-ring with a round cross section, designed for use in fluid and pneumatic sealing applications across HVAC, plumbing, and general mechanical systems. It measures 0.188 inches inside diameter, 0.313 inches outside diameter, and 0.0625 inches thick. Manufactured from 70-durometer polyurethane, it delivers firm compression resistance and reliable sealing performance. The material resists petroleum oils, hydrocarbon fuels, oxygen, ozone, and weathering, making it a dependable choice in fuel-handling and outdoor-exposed assemblies. Licensed technicians and maintenance professionals install this O-ring as a replacement or service part in pumps, valves, fittings, and hydraulic or pneumatic components.

This O-ring is suited for residential and light commercial applications where petroleum-based fluid contact is common, including fuel lines, hydraulic circuits, and valve body assemblies. The Dash 008 designation is a standard sizing reference used across a wide range of OEM and aftermarket components in plumbing, HVAC refrigerant-circuit accessories, and pool equipment. It is not recommended for use with acids, ketones, or chlorinated hydrocarbons. Some polyurethane formulations are also sensitive to prolonged water and humidity exposure, so verify suitability for wet environments before installation. This product is sold in a package of 10.

Key Features

• Polyurethane construction with 70 Shore A durometer for firm, consistent compression
• Round cross-section profile ensures even contact and reliable static or dynamic sealing
• Resistant to petroleum oils, hydrocarbon fuels, oxygen, ozone, and weathering
• Operating temperature range: -65 degrees F to 200 degrees F
• Dash 008 standard sizing for broad cross-reference compatibility
• Sold in a package of 10 units, minimum order quantity of 1 package

Compatibility

Designed as a standard Dash 008 O-ring replacement for pumps, valves, fittings, and fluid-handling components that specify a 0.188-inch ID, 0.313-inch OD, 0.0625-inch thick round-cross-section seal in polyurethane or compatible elastomer. Not suitable for systems involving acids, ketones, or chlorinated hydrocarbons.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or qualified mechanical service technicians. Always depressurize and isolate the system before removing or installing any O-ring seal. Inspect the mating groove and sealing surfaces for nicks, burrs, or contamination before seating the new O-ring. Avoid overstretching the O-ring during installation, and confirm chemical compatibility with the process fluid before placing into service.