Value Collection ZMSCS70047 Silicone O-ring Dash 047

Product Description

The VALUE COLLECTION ZMSCS70047 is a silicone O-ring with a round cross section, sized at 4.5 inches inside diameter, 4.625 inches outside diameter, and 0.0625 inches thick. It carries a Dash 047 designation and a Shore hardness of 70, classifying it as a hard-durometer seal. Silicone compound gives this O-ring a wide service temperature range, from -80 degrees F to 450 degrees F, making it well suited for static sealing applications where dry heat resistance and weather stability are priorities. Licensed tradespeople in HVAC, plumbing, and industrial maintenance typically install this type of seal in flanged, grooved, or gasketed connections.

This O-ring is appropriate for residential and light commercial applications where the sealed interface involves oils, chemicals, or solvents at moderate exposure levels. Its silicone material offers good weather and ozone resistance, though oil resistance is limited compared to Buna-N or Viton compounds. Typical install scenarios include replacement sealing on pump flanges, pipe unions, access covers, and similar static face-seal joints. This product is sold in a pack of 10, making it practical for service vehicles or stocking at a shop. It is not FDA approved and should not be used in food-contact or potable-water applications without verifying local code compliance.

Key Features

• Silicone compound rated for -80 degrees F to 450 degrees F continuous service
• Dash 047 standard sizing: 4.5 inches ID, 4.625 inches OD, 0.0625 inches thick
• Shore 70 hardness (hard durometer) for positive static sealing
• Round cross section for compatibility with standard O-ring grooves
• Good weather and ozone resistance for outdoor or exposed installations
• Sold in a pack of 10 units per order

Compatibility

Designed as a standard Dash 047 replacement O-ring for static sealing applications involving oils, chemicals, and solvents where wide temperature range and dry heat resistance are required. Verify groove dimensions before installation.

Installation Notes

O-ring replacement is typically performed by licensed HVAC technicians, plumbers, or industrial mechanics. Shut off and depressurize the system fully before removing the existing seal. Inspect the mating groove and seating surface for nicks, corrosion, or debris, and clean both surfaces before seating the new O-ring. Do not overstretch the O-ring during installation, and apply a compatible lubricant only if the application and fluid compatibility allow it.