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The VALUE COLLECTION ZMSCV70246 is a Dash 246 Viton (fluoroelastomer) O-ring designed for static and dynamic sealing applications where exposure to petroleum products, high temperatures, or aggressive chemicals is a concern. Measuring 4.5 inches inside diameter, 4.75 inches outside diameter, and 0.125 inches thick, this round cross-section ring delivers a reliable seal in demanding service environments. With a Shore A hardness of 70 and a working temperature range of -15 degrees F to 400 degrees F, it is suited for high-heat systems including hydraulic circuits, fuel systems, and HVAC refrigerant or oil-side connections. Each package contains 5 rings.
This O-ring is commonly installed in residential and commercial HVAC equipment, plumbing systems, fuel-handling assemblies, and industrial hydraulic applications wherever a 4.5-inch ID groove is specified. Its fluoroelastomer compound makes it a preferred choice over standard Buna-N rings when service conditions involve elevated temperatures, petroleum-based fluids, or vacuum service. Licensed HVAC technicians, plumbers, and millwrights typically install this ring as part of a seal kit replacement or scheduled maintenance service.
Designed as a standard Dash 246 O-ring replacement for any application requiring a 4.5-inch ID fluoroelastomer seal. Compatible with petroleum products and a broad range of industrial fluids; not FDA approved for food-contact applications.
Installation should be performed by a qualified technician following applicable codes such as NEC, IPC, or IFGC depending on the system type. Always depressurize, de-energize, and drain the system before removing the old O-ring or installing a replacement. Inspect the groove for nicks or debris, and apply a compatible lubricant to the O-ring before seating it to prevent tearing during assembly. Do not stretch the ring beyond what is necessary to seat it in the groove.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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