Value Collection ZMSCS70018 Silicone O-ring 50 Pack

Product Description

The VALUE COLLECTION ZMSCS70018 is a round cross-section silicone O-ring sized at 0.750 inches inside diameter, 0.875 inches outside diameter, and 0.0625 inches thick, corresponding to Dash Number 018. Rated at 70 Shore A hardness, this O-ring is designed for static and dynamic sealing applications where wide temperature range performance is required. Silicone compound provides reliable sealing from -80 degrees F to 450 degrees F, making it well suited for systems that cycle through extreme thermal conditions. Licensed trades and maintenance technicians use these rings wherever a durable, heat-resistant elastomeric seal is needed.

This O-ring is appropriate for use in HVAC equipment, plumbing assemblies, fluid handling systems, and light industrial applications where exposure to oils, chemicals, and solvents is anticipated. The silicone material offers good resistance to weathering and ozone degradation, making it a practical choice for both indoor and outdoor mechanical connections. Sold in a pack of 50, this SKU suits service shops, contractors, and facilities maintenance teams that keep standard Dash 018 O-rings in regular rotation.

Key Features

• Dash 018 standard sizing: 0.750 inches ID, 0.875 inches OD, 0.0625 inches thick
• Silicone compound rated from -80 degrees F to 450 degrees F operating range
• 70 Shore A hardness for firm sealing under compression
• Good weather and ozone resistance for long service life in exposed environments
• Compatible with oils, chemicals, and solvents in typical trade applications
• Pack of 50 units per order for shop stock or fleet service use

Compatibility

Designed as a standard Dash 018 replacement O-ring for any system or assembly that specifies a 0.750 inches ID silicone round cross-section O-ring in that size class.

Installation Notes

O-ring replacement is performed by licensed plumbers, HVAC technicians, and mechanical maintenance personnel. Always depressurize and de-energize the system and relieve any trapped fluid pressure before removing the existing O-ring. Inspect the groove and mating surfaces for scoring or debris before seating the new ring. Avoid twisting or over-stretching the O-ring during installation to preserve its cross-section geometry and sealing integrity.