Value Collection ZMSCH90271 O-ring Dash 271 Nitrile

Product Description

The VALUE COLLECTION ZMSCH90271 is a Dash 271 O-ring manufactured from Buna-N (nitrile butadiene rubber), one of the most widely used elastomers in fluid sealing applications. It measures 9.25 inches inside diameter, 9.5 inches outside diameter, and 0.125 inches thick with a round cross section. Rated at 90 durometer (extra hard), it delivers firm compression set resistance along with strong tear and abrasion resistance. The operating temperature range runs from -40 degrees F to 250 degrees F, making it suitable for demanding industrial and mechanical environments. Licensed tradespeople and maintenance technicians handling petroleum-based fluid systems will find this O-ring a reliable sealing component.

This O-ring is intended for use in applications involving petroleum products, hydraulic fluids, oils, and fuels where a Buna-N compound is the specified material. The Dash 271 size designation follows standard O-ring sizing conventions, and the 90 durometer hardness rating suits high-pressure or high-extrusion-risk installations. Typical applications include pump housings, valve bodies, cylinder heads, and pipe flanges in industrial, HVAC, plumbing, and fluid-power systems. Compliance with SAE and MIL-Spec standards makes this part appropriate for both commercial and light military-spec maintenance work. Parts are sold in packages of 10.

Key Features

• Buna-N (nitrile butadiene rubber) compound offers excellent resistance to petroleum products, hydraulic oils, and fuels
• 90 durometer extra-hard rating provides strong resistance to extrusion and compression set
• Operating range of -40 degrees F to 250 degrees F suits a wide range of service conditions
• Round cross section, 0.125 inches thick, conforms to standard Dash 271 sizing
• Meets SAE and MIL-Spec standards
• Sold in a package quantity of 10

Compatibility

Compatible with petroleum products, hydraulic oils, fuels, and similar petroleum-based media. Designed as an OEM-style replacement or service O-ring for any application calling for a standard Dash 271 Buna-N O-ring. Not recommended for use with ozone, sunlight-exposed installations, or near motors and electrical equipment that generate ozone.

Installation Notes

O-ring installation should be performed by a qualified technician following the system manufacturer's service procedures. Always depressurize and drain the system before removing any sealing components. Inspect the O-ring groove and mating surfaces for nicks, burrs, or corrosion before installing a new O-ring. Avoid twisting or rolling the O-ring during installation, and do not store unused O-rings in direct sunlight or near ozone-generating equipment.