Value Collection ZMSCS70FDA238 O-ring Dash 238 Silicone Fda

Product Description

The VALUE COLLECTION ZMSCS70FDA238 is a silicone O-ring with a round cross section, supplied in a package of 5. It carries a Dash 238 designation with an inside diameter of 3.484 inches, an outside diameter of 3.75 inches, and a thickness of 0.125 inches. The silicone compound is FDA-compliant, making it suitable for applications where food-contact or sanitary requirements apply. With a hardness rating of 70 Shore A and a working temperature range of -80 degrees F to 450 degrees F, this O-ring handles both cryogenic cold and sustained dry heat. Plumbers, process technicians, and maintenance professionals use it wherever a reliable seal against oils, chemicals, and solvents is required.

This O-ring is used in residential and commercial plumbing, food-processing equipment, chemical handling systems, and HVAC hydronic assemblies that demand wide temperature tolerance and good ozone and weather resistance. The silicone material provides limited but usable oil resistance and is particularly well-suited for dry-heat environments where EPDM or nitrile compounds would degrade. The FDA-compliant formulation makes it a practical choice for potable-water or food-grade piping connections. Each package contains 5 O-rings.

Key Features

• FDA-compliant silicone material meets food-contact and sanitary installation requirements
• Wide temperature range of -80 degrees F to 450 degrees F for cold and high-heat service
• Round cross section with Dash 238 designation for standardized groove fitment
• 70 Shore A hardness rated Hard for firm, reliable seating under compression
• Resistant to weather, ozone, and a broad range of chemicals and solvents
• Red color aids visual identification during installation and inspection

Compatibility

Designed as a standard Dash 238 O-ring replacement for any groove or fitting that accepts a 3.484-inch ID by 3.75-inch OD by 0.125-inch thick round-cross-section seal in silicone compound.

Installation Notes

Install by a qualified plumber, pipefitter, or maintenance technician following applicable IPC or process-piping codes. Shut off and depressurize the system before removing the old O-ring and seating the replacement. Inspect the groove for nicks or corrosion before installation; a damaged groove will cause premature seal failure. Avoid petroleum-based lubricants with silicone O-rings — use a silicone-compatible assembly lubricant only.