Value Collection ZMSCS70313 Silicone O-ring Dash 313 25-pack

Product Description

The VALUE COLLECTION ZMSCS70313 is a Dash 313 silicone O-ring designed for static and dynamic sealing applications across a broad temperature range. Measuring 0.688 inches inside diameter, 1.063 inches outside diameter, and 0.1875 inches thick, this round-cross-section ring is molded from silicone with a Shore A hardness rating of 70. It is rated for continuous service from -80 degrees F to 450 degrees F, making it well suited for high-heat environments where standard rubber compounds would fail. Plumbers, HVAC technicians, and industrial maintenance professionals install these rings wherever dry heat resistance and ozone resistance are required.

This O-ring is commonly used in fluid handling systems, HVAC equipment, pneumatic assemblies, and chemical processing lines. The Dash 313 designation corresponds to a standardized cross-section and diameter that fits a wide range of grooved fittings and housings. It performs well in contact with oils, chemicals, and solvents within its rated temperature window. Each package contains 25 pieces, supporting service calls, repair kits, and production line use. Color is white, consistent with standard food-processing and high-visibility applications.

Key Features

• Silicone compound rated from -80 degrees F to 450 degrees F for wide-range temperature service
• Round cross section, Dash 313 standard sizing for drop-in groove compatibility
• Shore A hardness of 70 for firm sealing under compression
• Resistant to weather, ozone, and dry heat; limited oil resistance noted
• Compatible with oils, chemicals, and solvents within rated limits
• Sold in packs of 25 to support inventory and service kit builds

Compatibility

Designed as a standard Dash 313 O-ring replacement for grooved fittings, valves, and housings that accept a 0.688-inch ID by 1.063-inch OD by 0.1875-inch cross-section silicone seal.

Installation Notes

Install and replace O-rings with the system depressurized and, where applicable, the fluid supply fully shut off. Inspect the mating groove for burrs, corrosion, or debris before seating the ring. Avoid stretching the O-ring more than necessary during installation to prevent micro-tears that lead to premature failure. Technicians should follow applicable system manufacturer guidelines and relevant codes when servicing pressurized fluid or refrigerant circuits.