Value Collection ZMSCS70FDA245 Silicone O-ring Dash 245

Product Description

The VALUE COLLECTION ZMSCS70FDA245 is a Dash 245 silicone O-ring designed for static and dynamic sealing applications where wide temperature range performance is required. With an inside diameter of 4.359 inches, an outside diameter of 4.625 inches, and a thickness of 0.125 inches, this round cross-section ring seats consistently in standard Dash 245 grooves. The silicone compound carries a Shore A hardness rating of 70 and an FDA-compliant material designation, making it suitable for food-contact and sanitary process environments. Rated from -80 degrees F to 450 degrees F, it maintains a reliable seal under dry heat conditions and resists weather and ozone degradation. Each package contains 5 rings.

This O-ring is used in plumbing, HVAC, food processing, pharmaceutical, and general industrial equipment where silicone elastomers are specified. Its FDA-compliant construction makes it appropriate for potable water, food-grade fluid handling, and sanitary piping systems. It is also a practical choice for outdoor equipment exposed to UV and ozone. Plumbers, pipefitters, and maintenance technicians typically install this style of O-ring during pump, valve, or fitting service where a Dash 245 cross-section is called out on the equipment drawing.

Key Features

• FDA-compliant silicone material suitable for food-contact and sanitary applications
• Wide service temperature range: -80 degrees F to 450 degrees F
• Shore A hardness of 70 for reliable groove retention and sealing force
• Good weather and ozone resistance for outdoor or exposed installations
• Round cross-section in standard Dash 245 sizing for drop-in replacement fitment
• Red color for easy visual identification of silicone compound in mixed-material inventories

Compatibility

Designed as a standard Dash 245 O-ring replacement compatible with grooves and fittings specifying a 4.359-inch inside diameter and 0.125-inch cross-section thickness in silicone elastomer. Compatible with oils, chemicals, and solvents per manufacturer specifications; limited oil resistance should be verified against the specific fluid contact before installation.

Installation Notes

Installation should be performed by a qualified plumber, pipefitter, or maintenance technician. Depressurize and drain the line or equipment before removing the existing O-ring. Inspect the groove for nicks, burrs, or corrosion that could compromise the seal, and clean the seating surface before installing the new ring. Avoid using petroleum-based lubricants with silicone O-rings; use a silicone-compatible assembly lubricant where needed.