Value Collection ZMSCFS033 Fluorosilicone O-ring Dash 033

Product Description

The VALUE COLLECTION ZMSCFS033 is a fluorosilicone O-ring with a round cross section, sized at 1.989 inches inside diameter and 2.125 inches outside diameter with a thickness of 0.0625 inches (Dash 033). Fluorosilicone compounds combine the temperature flexibility of silicone with resistance to fuels, oils, and solvents, making this O-ring well suited for sealing applications where both thermal extremes and fluid exposure are a concern. The part carries a Shore A hardness of 70 and meets MIL-R-25988 Type 1 Class 1 requirements. It is installed by plumbers, HVAC technicians, and mechanical contractors working on fluid and gas sealing assemblies. Sold in a pack of 5.

This O-ring is used in residential and commercial sealing applications where operating temperatures range from -80 degrees F to 400 degrees F. Its fluorosilicone material performs in environments exposed to fuels, hydraulic fluids, and silicone oils that would degrade standard nitrile or EPDM compounds. Typical installation scenarios include fuel system connections, aerospace-adjacent mechanical assemblies, and HVAC equipment requiring wide-temperature-range seals. The Dash 033 designation follows AS568 standard sizing for consistent cross-referencing across suppliers.

Key Features

• Fluorosilicone compound resists fuels, oils, solvents, and silicone-based fluids
• Wide service temperature range: -80 degrees F to 400 degrees F
• Shore A hardness of 70 for a firm, reliable seal under compression
• Meets MIL-R-25988 Type 1 Class 1 compliance
• Round cross section follows AS568 Dash 033 standard sizing
• Pack of 5 units per package

Compatibility

Designed as a standard AS568 Dash 033 O-ring replacement for sealing applications requiring fluorosilicone material in fluid, fuel, or wide-temperature-range systems.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or mechanical contractors. Always depressurize and de-energize the system and drain any fluid before removing or replacing O-rings. Inspect the sealing groove for damage or debris before seating the new O-ring. Avoid twisting or pinching the O-ring during installation; use only compatible lubricants approved for fluorosilicone compounds.