Value Collection ZMSCH90034 O-ring Dash 034 Buna-n 90 Duro

Product Description

The VALUE COLLECTION ZMSCH90034 is a Dash 034 Buna-N (Nitrile Butadiene Rubber) O-ring rated at 90 durometer hardness, designed for static and dynamic sealing applications in fluid and pneumatic systems. With an inside diameter of 2.125 inches, an outside diameter of 2.25 inches, and a cross-sectional thickness of 0.0625 inches, this round-profile ring seats precisely in standard Dash 034 grooves. The extra-hard 90 durometer rating delivers superior resistance to extrusion under pressure. Operating range spans -40 degrees F to 250 degrees F, making it suitable for moderate-temperature service environments. Installation is performed by licensed plumbers, HVAC technicians, hydraulic system mechanics, and industrial maintenance professionals.

This O-ring is a fit for sealing joints in hydraulic lines, pneumatic assemblies, fuel systems, and general industrial plumbing where petroleum-based media is present. Buna-N is the most widely used elastomer for petroleum-contact applications, and the Dash 034 designation aligns with standard SAE and MIL-Spec groove geometries. Sold in a package quantity of 100 with a minimum order quantity of 1, this SKU is suited for shop stock, MRO replenishment, and service fleet kits where consistent seal sizing is required.

Key Features

• Buna-N (Nitrile) elastomer provides excellent resistance to petroleum products and hydraulic fluids
• 90 durometer extra-hard rating reduces extrusion risk under elevated system pressures
• Temperature range of -40 degrees F to 250 degrees F covers a wide range of service conditions
• Round cross-section profile conforms to standard Dash 034 groove dimensions per SAE and MIL-Spec
• Strong tear and abrasion resistance extends service life in dynamic sealing applications
• Package of 100 units supports shop stock and bulk service use

Compatibility

Compatible with petroleum products and systems using standard Dash 034 O-ring grooves per SAE and MIL-Spec standards. Not FDA approved; not recommended for food-contact, ozone-generating, or direct-sunlight storage environments.

Installation Notes

Depressurize and isolate the system completely before removing or installing any O-ring seal. Inspect the groove for burrs, corrosion, or damage that could compromise the seal surface before seating the new ring. Apply a light coat of compatible lubricant to ease installation and prevent roll or twist in the groove. Store unused O-rings away from direct sunlight, ozone sources, and electrical equipment to preserve elastomer integrity.