Value Collection ZMSCV70139 Viton O-ring Dash 139

Product Description

The VALUE COLLECTION ZMSCV70139 is a Dash 139 Viton (fluoroelastomer) O-ring used to create a reliable fluid or gas seal in hydraulic, pneumatic, plumbing, and mechanical systems. It measures 2.188 inches inside diameter, 2.375 inches outside diameter, and 0.094 inches thick, with a round cross section. The 70 durometer hardness rating classifies it as a hard compound, which helps maintain low compression set under sustained load. Operating temperature range spans -15 degrees F to 400 degrees F, making it suitable for high-heat environments where standard nitrile or EPDM seals would fail.

This O-ring is intended for use in applications that involve petroleum-based fluids, hydraulic oils, fuels, and a wide spectrum of chemicals. Its fluoroelastomer compound provides good resistance to petroleum products, low gas permeability, and suitability for vacuum service. Typical installation scenarios include pump housings, valve bodies, fittings, and fluid system components found in industrial, HVAC, plumbing, and mechanical maintenance settings. It is sold in packages of 10 units, with a minimum order quantity of 1 package.

Key Features

• Fluoroelastomer (Viton) material for high-temperature and chemical resistance up to 400 degrees F
• 70 durometer hardness for low compression set under sustained clamping load
• Round cross section, Dash 139 standard sizing for consistent fit in grooved hardware
• Good resistance to petroleum products, hydraulic fluids, and a wide range of chemicals
• Low gas permeability makes it suitable for vacuum service applications
• Black color; sold in 10-piece packages

Compatibility

Designed as a standard Dash 139 O-ring replacement for use in grooves and fittings that accept a 2.188-inch ID, 2.375-inch OD, 0.094-inch cross-section seal. Compatible with petroleum products and systems requiring fluoroelastomer chemical resistance.

Installation Notes

Installation is typically performed by licensed mechanics, plumbers, or maintenance technicians during equipment service or rebuild. Depressurize and isolate the system completely before removing the old seal. Inspect the groove and mating surfaces for damage or debris before seating the new O-ring. Avoid rolling or twisting the O-ring during installation, and apply a compatible lubricant to ease seating without compromising the seal.