Value Collection ZMSCS70361 Silicone O-ring Dash 361 5-pack

Product Description

The VALUE COLLECTION ZMSCS70361 is a round-cross-section silicone O-ring designed for static and dynamic sealing applications across plumbing, HVAC, and industrial systems. It measures 6 inches inside diameter, 6.375 inches outside diameter, and 0.1875 inches thick, corresponding to Dash Number 361. The silicone compound gives it a working temperature range of -80 degrees F to 450 degrees F, making it a reliable choice where wide thermal swings or dry heat resistance are required. Hardness is rated at 70 Shore A. Licensed tradespeople and maintenance technicians install this O-ring wherever a Dash 361 profile is specified.

This O-ring is suited for residential and commercial applications where the sealing surface contacts oils, chemicals, or solvents at temperatures outside the range of standard Buna-N compounds. Typical install scenarios include pump housings, valve bodies, and pipe unions. The silicone material also provides good weather and ozone resistance, extending service life in outdoor or exposed equipment. Each package contains 5 O-rings. Note that oil resistance is limited compared to nitrile alternatives, so verify fluid compatibility before installation.

Key Features

• Silicone compound rated for -80 degrees F to 450 degrees F continuous service
• Dash 361 profile: 6 inches ID, 6.375 inches OD, 0.1875 inches thick
• 70 Shore A hardness — classified as hard durometer
• Round cross section for consistent seating in standard O-ring grooves
• Good weather and ozone resistance for outdoor or exposed installations
• Sold in a pack of 5 per package

Compatibility

Designed as a direct-fit replacement wherever a Dash 361 O-ring with a silicone compound is specified. Suitable for sealing applications involving oils, chemicals, and solvents; verify compatibility with specific fluids before use, as oil resistance is limited.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or industrial maintenance personnel. Shut off and depressurize the system completely before removing the old O-ring or seating the new one. Clean the groove and mating surfaces of any debris or old sealant before installing. Do not use petroleum-based lubricants with silicone O-rings; use a silicone-compatible assembly lubricant only.