Value Collection ZMSCV70908 Viton O-ring Dash 908 25 Pack

Product Description

The VALUE COLLECTION ZMSCV70908 is a Dash 908 Viton fluoroelastomer O-ring designed for use in straight-thread tube fitting boss gasket applications. It measures 0.644 inches inside diameter, 0.818 inches outside diameter, and 0.087 inches thick with a round cross section. The material is a 70-durometer fluoroelastomer rated for service from -15 degrees F to 400 degrees F, making it suitable for high-temperature and chemical-exposure environments. Each package contains 25 O-rings. Licensed plumbers, pipefitters, and hydraulic technicians working with petroleum-based fluids and high-temperature systems will find this seal appropriate for demanding service conditions.

This O-ring is used as a boss gasket for straight-thread tube fittings in hydraulic, pneumatic, and fluid-transfer systems where petroleum product compatibility and high-temperature resistance are required. The fluoroelastomer compound provides good chemical resistance across a wide spectrum of fluids and offers low gas permeability, making it suitable for vacuum service as well. Typical install environments include industrial fluid systems, HVAC refrigerant-adjacent plumbing, and mechanical equipment with threaded port connections exposed to elevated temperatures or aggressive fluid media.

Key Features

• Fluoroelastomer (Viton-type) material rated from -15 degrees F to 400 degrees F
• 70-durometer hardness rated Hard for reliable compression sealing under pressure
• Low compression set for sustained sealing performance over time
• Good resistance to petroleum products and a wide spectrum of chemical media
• Suitable for vacuum service with low gas permeability
• Round cross section, Dash 908 sizing for straight-thread boss fittings

Compatibility

Designed as an OEM-style replacement boss gasket for straight-thread tube fittings requiring a Dash 908 O-ring in systems handling petroleum products or high-temperature fluids. Compatible with petroleum-based media per manufacturer specification.

Installation Notes

Installation of O-ring boss gaskets is typically performed by licensed plumbers, pipefitters, or hydraulic technicians. Always depressurize and isolate the system before replacing any seals. Inspect the fitting boss and threads for damage or contamination before installing the new O-ring. Follow applicable industry standards and fitting manufacturer torque guidelines for straight-thread connections.