Value Collection ZMSCQH70126 O-ring Dash 126 Nbr 70A

Product Description

The VALUE COLLECTION ZMSCQH70126 is a Dash 126 X-profile (quattro cross section) o-ring made from Nitrile Butadiene Rubber (NBR). Unlike standard round cross-section o-rings, the X-profile design provides four sealing lips, reducing seal roll and twist during installation and dynamic cycling. This o-ring measures 1.375 inches inside diameter, 1.563 inches outside diameter, and 0.094 inches thick. It carries a 70 Shore A durometer rating, placing it in the hard range, which suits moderate-pressure static and dynamic sealing applications. Licensed trades and maintenance professionals install these seals across hydraulic, pneumatic, and fluid-handling systems.

This o-ring is suited for static face-seal, piston, and rod-seal grooves designed to the Dash 126 standard. The NBR compound performs across a working temperature range of -30 degrees F to 250 degrees F, making it appropriate for most HVAC, plumbing, and light hydraulic service environments where petroleum-based fluids, water, or air are the media. It is not FDA approved and should not be used in food-contact or medical-grade applications. Each package contains 25 o-rings, supporting shop stock and field replenishment needs.

Key Features

• X-profile quattro cross section reduces seal roll and twist compared to standard round cross-section o-rings
• Nitrile Butadiene Rubber compound resists petroleum oils, hydraulic fluids, water, and air
• 70 Shore A hardness rated Hard for moderate-pressure sealing duty
• Operating range of -30 degrees F to 250 degrees F covers most HVAC and plumbing service conditions
• Conforms to Dash 126 dimensional standard for direct groove compatibility
• Sold in a pack of 25, suitable for stocking or multi-unit service calls

Compatibility

Designed as an OEM-style replacement or service seal for any groove machined to the Dash 126 standard with a 1.375-inch inside diameter and 0.094-inch cross-section thickness.

Installation Notes

Install by a qualified mechanic, plumber, or HVAC technician. De-energize and depressurize the system fully before removing the old seal. Lightly lubricate the o-ring with a fluid compatible with both NBR and the system media before seating it in the groove; avoid petroleum-based grease with non-petroleum-compatible systems. Inspect the groove for burrs, corrosion, or damage before installation to prevent premature seal failure.