Value Collection ZMSCH90912 Nitrile O-ring Dash 912

Product Description

The VALUE COLLECTION ZMSCH90912 is a Dash 912 O-ring made from Nitrile Butadiene Rubber (Buna-N), one of the most widely used elastomers in fluid sealing applications. It measures 0.924 inches inside diameter, 1.156 inches outside diameter, and 0.116 inches thick, with a round cross-section profile. Rated at 90 durometer (extra hard), it delivers firm compression set resistance along with strong tear and abrasion resistance. The operating temperature range spans -40 degrees F to 250 degrees F, making it suitable for a broad range of service conditions. HVAC technicians, plumbers, and fluid-system mechanics use this O-ring as a static or dynamic seal in equipment involving petroleum-based fluids and lubricants.

This O-ring is well suited for residential and commercial plumbing, HVAC refrigerant-adjacent components, hydraulic fittings, and general fluid-handling assemblies where petroleum product compatibility is required. Its Buna-N construction provides excellent resistance to oils, fuels, and petroleum-based lubricants encountered in trade service work. The package quantity is 100 pieces, making it appropriate for shop stock, service van inventory, or production-line assembly use.

Key Features

• Buna-N (Nitrile Butadiene Rubber) material — the most widely used O-ring elastomer for petroleum-fluid compatibility
• 90 durometer extra-hard rating for firm sealing under compression in high-pressure or tight-tolerance fittings
• Operating range of -40 degrees F to 250 degrees F covers most HVAC, plumbing, and hydraulic service environments
• Round cross-section profile for consistent sealing in standard O-ring grooves
• Meets SAE and MIL-Spec standards
• Black color; sold in a package quantity of 100 pieces

Compatibility

Compatible with petroleum products including oils, fuels, and lubricants. Designed as a standard Dash 912 O-ring replacement for use in fittings, valves, and fluid-handling components that accept a 0.924-inch ID by 1.156-inch OD round cross-section seal. Not FDA approved; not recommended for food-contact applications.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or hydraulic system mechanics. Always depressurize and de-energize the system and drain any fluid before removing or replacing O-rings. Lightly lubricate the O-ring with a compatible fluid or O-ring lubricant before seating it to avoid rolling or tearing during assembly. Store unused O-rings away from direct sunlight, ozone sources, and electrical equipment that may generate ozone, as these conditions degrade Buna-N elastomers over time.