Value Collection ZMSCH2.4X8.3 O-ring 8.3 in Id Nitrile

Product Description

The VALUE COLLECTION ZMSCH2.4X8.3 is a large-diameter nitrile butadiene rubber (Buna-N) O-ring used to create a reliable static or dynamic seal in industrial, plumbing, and mechanical systems. It measures 8.3 inches inside diameter, 13.1 inches outside diameter, and 2.4 inches thick, with a round cross section. Rated for service from -40 degrees F to 250 degrees F, this O-ring carries a Shore A hardness of 70 and delivers strong resistance to petroleum products, compression set, tearing, and abrasion. It meets SAE and MIL-Spec standards. Plumbers, pipefitters, and industrial maintenance technicians are the typical installers.

This O-ring is suited for large-bore sealing applications in hydraulic systems, pumps, compressors, flanges, and fluid handling assemblies where petroleum-based media are present. The Buna-N compound makes it a practical choice for fuel systems, oil lines, and other hydrocarbon-service environments encountered in commercial and industrial maintenance work. It is not suitable for ozone-heavy environments or prolonged direct sunlight exposure. Package quantity is 100 units per order with a minimum order quantity of 1.

Key Features

• Buna-N (nitrile butadiene rubber) compound - the most widely used O-ring elastomer for petroleum-service applications
• Large-bore sizing: 8.3 inches ID, 13.1 inches OD, 2.4 inches thickness for heavy-duty sealing needs
• Operating temperature range: -40 degrees F to 250 degrees F
• Shore A hardness of 70 provides firm compression set resistance and abrasion durability
• Round cross section ensures consistent radial seal contact in standard groove profiles
• Meets SAE and MIL-Spec standards for material and dimensional conformance

Compatibility

Designed for use with petroleum-based products and compatible hydrocarbon fluids in industrial and mechanical sealing applications. Not FDA approved; not recommended for food-contact, ozone-rich, or direct-sunlight storage environments.

Installation Notes

Installation is typically performed by plumbers, pipefitters, or industrial maintenance technicians during pump, flange, or valve service. Shut down and depressurize the system fully before removing the old O-ring or seating the replacement. Lubricate the O-ring with a compatible petroleum-based or system-approved lubricant to ease installation and prevent nicking during assembly. Do not store unused O-rings near motors, electrical equipment, or in direct sunlight, as ozone and UV exposure degrade nitrile compounds over time.