Value Collection ZMSCV70254 Viton O-ring Dash 254 Pack of 2

Product Description

The VALUE COLLECTION ZMSCV70254 is a Dash 254 Viton (fluoroelastomer) O-ring designed for sealing applications that demand resistance to high temperatures, petroleum-based fluids, and a wide range of chemicals. With a 5.5-inch inside diameter, 5.75-inch outside diameter, and a 0.125-inch round cross section, this O-ring is engineered for use in larger-bore sealing points. The fluoroelastomer compound provides a hardness rating of 70 Shore A, low compression set, and low gas permeability — properties valued in demanding fluid and vacuum sealing environments. Each package contains 2 pieces.

This O-ring is suited for residential and commercial HVAC, plumbing, refrigeration, and industrial fluid systems where petroleum products, high heat, or vacuum conditions are present. It is commonly installed in pump housings, valve bodies, manifold ports, and pipe flanges requiring a large-diameter static or dynamic seal. Its rated temperature range of -15 degrees F to 400 degrees F makes it appropriate for both low-temperature and high-heat service environments. Technicians working with petroleum-based hydraulic fluids, fuel systems, or refrigerant circuits will find this material profile particularly relevant.

Key Features

• Fluoroelastomer (Viton) compound rated from -15 degrees F to 400 degrees F
• 70 Shore A hardness with low compression set for long-term sealing integrity
• Good resistance to petroleum products and a wide spectrum of chemicals
• Low gas permeability makes it suitable for vacuum service applications
• Round cross-section profile for consistent seating in standard O-ring grooves
• Sold in a 2-piece package; minimum order quantity of 1 package

Compatibility

Designed as an OEM-style replacement or service seal for equipment using a Dash 254 O-ring with a 5.5-inch inside diameter, 5.75-inch outside diameter, and 0.125-inch cross section. Compatible with petroleum products and suitable for systems requiring fluoroelastomer chemical resistance.

Installation Notes

Licensed HVAC technicians, plumbers, and mechanical technicians typically install large-diameter O-rings of this type. Always depressurize, drain, and lock out the system before removing the old seal. Inspect the groove for nicks, corrosion, or debris before seating the new O-ring, and apply a compatible lubricant to ease installation without distorting the cross section. Follow applicable IFGC, IPC, or equipment manufacturer service procedures for reassembly and pressure testing.