Value Collection ZMSCH2.5X12 Nitrile O-ring 12mm Id 100 Pack

Product Description

The VALUE COLLECTION ZMSCH2.5X12 is a Buna-N (Nitrile Butadiene Rubber) O-ring with a round cross section, designed for sealing applications in fluid and pneumatic systems. It measures 12mm inside diameter, 17mm outside diameter, and 2.5mm thick. Rated at 70 Shore A hardness, this O-ring handles a temperature range of -40 degrees F to 250 degrees F and is compatible with petroleum-based fluids, making it a standard choice for hydraulic, fuel, and oil system sealing. Licensed plumbers, HVAC technicians, and mechanical service pros reach for Buna-N O-rings as the most widely used elastomer seal in the trade.

This O-ring is suited for residential and commercial applications wherever a metric-dimensioned round cross-section seal is required. Common install scenarios include hydraulic fittings, pneumatic connectors, fuel system components, pump housings, and valve bodies. Its resistance to petroleum products makes it a reliable choice for oil and fuel line connections. The package contains 100 O-rings, providing a practical bench stock quantity for service shops, plumbing contractors, and HVAC technicians who replace seals frequently during routine maintenance or component rebuilds.

Key Features

• Buna-N (Nitrile Butadiene Rubber) construction — the most widely used O-ring elastomer in the trade
• Excellent resistance to petroleum products including oils and fuels
• Round cross section for consistent sealing contact and reliable compression set performance
• Temperature range: -40 degrees F to 250 degrees F
• 70 Shore A hardness rating for firm, durable sealing under pressure
• Meets SAE and MIL-Spec standards
• Package quantity of 100 for bench stock and high-volume service use

Compatibility

Compatible with petroleum-based products and fluids. Designed for use in hydraulic, pneumatic, fuel, and oil system applications requiring a metric round cross-section O-ring seal. Not FDA approved — not intended for food-contact or potable water applications.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or hydraulic system technicians. Always depressurize and isolate the system before removing or installing O-ring seals. Do not store Buna-N O-rings in direct sunlight or near motors and other electrical equipment that may generate ozone, as ozone exposure degrades nitrile rubber over time. Lightly lubricate the O-ring with a compatible fluid before seating to prevent tearing during installation.