Value Collection ZMSCH90262 O-ring Dash 262 Buna-n 90A

Product Description

The VALUE COLLECTION ZMSCH90262 is a Dash 262 O-ring manufactured from Buna-N (Nitrile Butadiene Rubber), one of the most widely used elastomers in industrial and trade sealing applications. It measures 7 inches inside diameter, 7.25 inches outside diameter, and 0.125 inches thick, with a round cross-section profile. Rated at 90 durometer (extra hard), this O-ring delivers excellent compression set resistance along with strong tear and abrasion resistance. Its operating temperature range spans -40 degrees F to 250 degrees F. Plumbers, HVAC technicians, and fluid-system mechanics rely on Buna-N O-rings for reliable sealing in petroleum-based fluid environments.

This O-ring is suited for static and dynamic sealing applications where contact with petroleum products, hydraulic oils, fuels, or lubricants is expected. Typical install scenarios include pipe flanges, valve stems, pump housings, cylinder heads, and fluid fittings across residential and light commercial mechanical systems. The Dash 262 sizing is a standard AS568 designation, making it a common replacement or maintenance stock item. It is not recommended for exposure to ozone-generating sources such as electric motors or direct sunlight during storage.

Key Features

• Buna-N (Nitrile Butadiene Rubber) construction with excellent petroleum product resistance
• 90 durometer extra-hard rating for high-compression sealing applications
• Operating range of -40 degrees F to 250 degrees F
• Round cross-section, AS568 Dash 262 standard sizing
• Meets SAE and MIL-Spec standards
• Sold in a package quantity of 10 with a minimum order quantity of 1

Compatibility

Compatible with petroleum products, hydraulic fluids, lubricants, and similar mineral-oil-based media. Designed as a standard Dash 262 replacement O-ring for any application calling for AS568-262 sizing in a Buna-N compound.

Installation Notes

O-rings of this type are installed by plumbers, HVAC technicians, and mechanical system technicians. Always depressurize and drain the system before replacing any sealing component. Inspect the mating groove for wear, scoring, or contamination before seating the new O-ring. Do not store Buna-N O-rings near electric motors, ozone-generating equipment, or in direct sunlight, as ozone exposure degrades the elastomer.