Value Collection ZMSCA80239 Aflas O-ring Dash 239

Product Description

The VALUE COLLECTION ZMSCA80239 is an Aflas compound O-ring designed for static and dynamic sealing applications across industrial, HVAC, refrigeration, and fluid-handling systems. It carries a Dash 239 designation with a 3.625-inch inside diameter, a 3.875-inch outside diameter, and a 0.125-inch cross-section thickness. The Aflas elastomer compound delivers a wide service temperature range of 25 degrees F to 450 degrees F with a Shore A hardness rating of 80, making it a dependable choice for demanding sealing environments where chemical and thermal resistance are both required. Licensed trades and maintenance professionals install these in systems handling fuels, hydraulic oils, brake fluids, refrigeration fluids, and a range of chemical media.

This O-ring is suited for residential and commercial applications including refrigeration equipment, hydraulic systems, fuel-handling lines, and HVAC refrigerant circuits. Its Aflas formulation provides moderate resistance to petroleum products along with good ozone and weather resistance, making it a practical choice for outdoor or exposed equipment. The round cross-section and Dash 239 sizing follow standard O-ring dimensioning, allowing straightforward drop-in replacement in existing grooves sized for the 239 dash number. Each package contains 2 O-rings.

Key Features

• Aflas compound with good chemical compatibility including acetic acid, animal oils, bases, brake fluids, fuels, and hydraulic oil
• Broad temperature range: 25 degrees F to 450 degrees F
• Shore A hardness of 80 for reliable compression set performance
• Good ozone and weather resistance for exposed or outdoor service
• Excellent for sealing refrigeration fluids including Freon-type refrigerants
• Standard Dash 239 sizing for direct groove replacement

Compatibility

Designed as a standard Dash 239 replacement O-ring for any application requiring a 3.625-inch ID by 3.875-inch OD by 0.125-inch thick round cross-section seal in Aflas compound.

Installation Notes

O-ring installation should be performed by a qualified tradesperson familiar with the specific system — refrigeration circuits require an EPA Section 608 certified technician. Always depressurize and isolate the system before replacing any seals. Lubricate the O-ring lightly with a compatible lubricant to seat it without twisting or rolling. Inspect the groove for debris, scoring, or damage before installation to ensure proper sealing.