Value Collection ZMSCS70219 Silicone O-ring Dash 219 50pk

Product Description

The VALUE COLLECTION ZMSCS70219 is a Dash 219 silicone O-ring designed for static and dynamic sealing applications across a wide range of operating conditions. With an inside diameter of 1.313 inches, an outside diameter of 1.563 inches, and a thickness of 0.125 inches, this round cross-section ring provides a dependable seal in systems where temperature extremes and ozone or weather exposure are primary concerns. Rated for service from -80 degrees F to 450 degrees F, it is well suited for dry heat environments and general industrial sealing tasks. Each order includes 50 rings per package.

This O-ring is appropriate for use in HVAC, plumbing, and general mechanical assemblies where silicone elastomers are specified. It performs in applications involving exposure to oils, chemicals, and solvents, though users should note its oil resistance is limited compared to nitrile or EPDM compounds. It is commonly installed by HVAC technicians, plumbers, and industrial maintenance professionals in fittings, valves, pumps, and fluid system connections that require broad temperature tolerance and reliable weather resistance.

Key Features

• Wide service temperature range: -80 degrees F to 450 degrees F for demanding thermal environments
• Round cross-section silicone construction with a 70 Shore A hardness rating
• Good resistance to ozone, weather, and dry heat degradation
• Compatible with oils, chemicals, and solvents (limited oil resistance — verify suitability for heavy oil exposure)
• White color aids visual inspection during installation
• Sold in a 50-piece package with a minimum order quantity of 1

Compatibility

Designed as a standard Dash 219 O-ring replacement suitable for fittings, valves, pumps, and fluid system components specifying a silicone elastomer seal with 1.313 inches ID and 1.563 inches OD.

Installation Notes

O-rings of this type are installed by licensed HVAC technicians, journeyman plumbers, and qualified mechanical service personnel. Always depressurize and de-energize the system before replacing any seal. Inspect the groove for nicks or burrs that could compromise the seal surface. Use only a compatible lubricant rated for silicone elastomers — petroleum-based greases can degrade silicone over time.