Value Collection ZMSCS70FDA018 Silicone O-ring Dash 018

Product Description

The VALUE COLLECTION ZMSCS70FDA018 is a silicone O-ring with a round cross section, sized at 0.739 inches inside diameter, 0.875 inches outside diameter, and 0.0625 inches thick. It carries a Dash 018 designation and a Shore A hardness of 70, placing it in the hard hardness rating category. The material is FDA-compliant silicone, making it appropriate for applications where food-contact or sanitary requirements apply. This O-ring is rated for a wide temperature range, from -80 degrees F to 450 degrees F, and is suitable for use in systems where dry heat resistance, weather resistance, and ozone resistance are priorities. Licensed trades and maintenance professionals install this part in plumbing, HVAC, and process piping applications.

This O-ring is used in residential and commercial applications wherever a Dash 018 silicone seal is required. Its FDA-compliant silicone construction makes it a common choice for food processing equipment, potable water systems, and sanitary plumbing fittings. It also sees use in HVAC equipment seals, pump housings, and valve bodies where temperature extremes or ozone exposure are concerns. The silicone compound offers limited oil resistance, so it is not the preferred choice for petroleum-fluid sealing. This part is sold in a pack of 100 units, suited for shop stock, service vans, or maintenance department inventory.

Key Features

• FDA-compliant silicone material suitable for food-contact and potable water applications
• Wide service temperature range: -80 degrees F to 450 degrees F
• Shore A hardness of 70 for a firm, reliable seal under compression
• Round cross section, Dash 018 standard sizing for direct OEM-style replacement
• Good resistance to weather, dry heat, and ozone exposure
• Pack of 100 — designed for bulk stocking and high-frequency service use

Compatibility

Designed as an OEM-style replacement silicone O-ring for any application requiring a Dash 018 size with a round cross section, including plumbing fittings, HVAC equipment seals, pump housings, and sanitary or food-grade process equipment. Note that silicone offers limited oil resistance and is not recommended as a direct replacement in petroleum-fluid sealing applications.

Installation Notes

O-ring replacement is typically performed by licensed plumbers, HVAC technicians, or mechanical maintenance professionals. Always shut off and depressurize the system before removing the old O-ring to prevent fluid or refrigerant release. Inspect the groove and mating surfaces for nicks or corrosion before seating the new O-ring. Avoid using petroleum-based lubricants with silicone O-rings; use a silicone-compatible lubricant to ease installation without degrading the seal material.