Value Collection ZMSCH2X8 O-ring 8in Id Nitrile 100 Pack

Product Description

The VALUE COLLECTION ZMSCH2X8 is a Buna-N (nitrile butadiene rubber) O-ring with an 8-inch inside diameter, 12-inch outside diameter, and a 2-inch cross-section thickness. It features a round cross-section profile and a Shore A hardness of 70, placing it in the hard hardness category. Sold in a package of 100, this O-ring is a standard sealing component used across plumbing, hydraulic, pneumatic, and industrial fluid systems. Licensed plumbers, pipefitters, and mechanical technicians install this type of seal in applications requiring reliable resistance to petroleum-based fluids and oils.

This O-ring is suited for use in static and dynamic sealing applications where contact with petroleum products, hydraulic oils, and fuels is expected. Its wide temperature range of -40 degrees F to 250 degrees F makes it appropriate for both low-temperature and elevated-temperature service conditions. The Buna-N compound is the most broadly used O-ring elastomer in trade applications, appearing in pump housings, valve bodies, pipe flanges, compressor fittings, and hydraulic manifolds across residential, commercial, and light industrial systems.

Key Features

• Buna-N (Nitrile Butadiene Rubber) compound provides excellent resistance to petroleum products, hydraulic fluids, and oils
• Operating temperature range of -40 degrees F to 250 degrees F suits a broad range of service environments
• Shore A hardness of 70 (hard rating) supports reliable compression set and dimensional stability under load
• Round cross-section profile for consistent seating in standard O-ring grooves
• Tear and abrasion resistance extends service life in dynamic sealing applications
• Meets SAE and MIL-Spec standards; packaged in quantities of 100 for shop and field stock

Compatibility

Compatible with petroleum products and petroleum-based hydraulic fluids. Meets SAE and MIL-Spec standards. Not FDA approved; not rated for food-contact applications. Store away from direct sunlight and ozone-generating equipment such as electric motors.

Installation Notes

Installation is typically performed by licensed plumbers, pipefitters, or hydraulic system technicians. De-pressurize and drain the system fully before removing or replacing any O-ring seal. Inspect the mating groove for burrs, corrosion, or contamination before seating the new O-ring. Do not store Buna-N O-rings near motors, electrical equipment, or in direct sunlight, as ozone exposure degrades nitrile compounds over time.