Value Collection ZMSCV70249 Viton O-ring Dash 249 5-pack

Product Description

The VALUE COLLECTION ZMSCV70249 is a Dash 249 Viton fluoroelastomer O-ring designed for static and dynamic sealing applications where petroleum resistance and high-temperature stability are required. Measuring 4.875 inches inside diameter, 5.125 inches outside diameter, and 0.125 inches thick, this round cross-section O-ring carries a Shore A hardness rating of 70. It is rated for continuous service from -15 degrees F to 400 degrees F, making it suitable for demanding fluid and gas sealing environments. Each order contains a pack of 5 O-rings. HVAC technicians, plumbers, and industrial service professionals commonly install this size in large-bore fittings, valve bodies, and pump flanges.

This O-ring is suited for residential and commercial applications involving petroleum-based fluids, hydraulic systems, fuel lines, and high-temperature sealing points. Its fluoroelastomer compound provides low gas permeability, making it appropriate for vacuum service as well. Installers working on large-diameter valve assemblies, compressor housings, or pump bodies will find this Dash 249 size a standard replacement geometry. The black color and round cross-section conform to industry-standard O-ring groove dimensions for Dash 249 profiles.

Key Features

• Fluoroelastomer (Viton) material with good resistance to petroleum products and fuels
• Operating temperature range of -15 degrees F to 400 degrees F
• Shore A hardness of 70 for a firm, low-compression-set seal
• Low gas permeability makes this ring suitable for vacuum service
• Round cross-section conforms to standard Dash 249 O-ring groove dimensions
• Pack of 5 units per order with a minimum order quantity of 1 pack

Compatibility

Designed as an OEM-style replacement or service O-ring for any application requiring a standard Dash 249 O-ring with a fluoroelastomer compound rated for petroleum product contact and elevated temperatures.

Installation Notes

Installation is typically performed by licensed HVAC technicians, plumbers, or mechanical service professionals. Always depressurize and drain the system before removing or installing O-rings, and verify the mating groove dimensions match the Dash 249 profile before installation. Lightly lubricate the O-ring with a compatible fluid or grease prior to seating to prevent rolling or tearing during assembly. Do not use petroleum-incompatible lubricants with this fluoroelastomer compound.