Value Collection ZMSCH70150 O-ring Dash 150 Nbr 50-pack

Product Description

The VALUE COLLECTION ZMSCH70150 is a Dash 150 O-ring made from Nitrile Butadiene Rubber (Buna-N), the most widely used elastomer in fluid sealing applications. With an inside diameter of 2.875 inches, an outside diameter of 3.063 inches, and a thickness of 0.0937 inches, this round cross-section ring seals reliably against petroleum-based fluids, hydraulic oils, and fuels. It carries a Shore A hardness of 70 and is rated for continuous service from -40 degrees F to 250 degrees F. Plumbers, HVAC technicians, and hydraulic system mechanics stock this ring as a standard replacement seal in pumps, valves, fittings, and manifolds.

This O-ring is suited for residential and commercial applications wherever a Dash 150 Buna-N seal is called out. Common installations include hydraulic cylinders, pneumatic fittings, fuel system connectors, and water service valves. Its compatibility with petroleum products makes it a go-to for fuel handling equipment and hydraulic circuits. The package contains 50 rings, making it practical for service shops or technicians who replace these seals on a regular basis. It meets SAE and MIL-Spec standards, supporting use in both commercial maintenance and light industrial environments.

Key Features

• Buna-N (Nitrile Butadiene Rubber) construction with excellent resistance to petroleum products, fuels, and hydraulic oils
• Dash 150 size: 2.875 inches ID, 3.063 inches OD, 0.0937 inches thick with round cross section
• Shore A hardness of 70 — rated Hard, providing reliable compression set and tear resistance
• Operating temperature range of -40 degrees F to 250 degrees F
• Meets SAE and MIL-Spec standards
• Pack of 50 rings — practical for shop stock or repeated service calls

Compatibility

Designed as a standard Dash 150 Buna-N O-ring replacement compatible with petroleum products and hydraulic fluid systems. Not FDA approved — not intended for direct food-contact applications. Store away from direct sunlight, motors, and ozone-generating electrical equipment to preserve elastomer integrity.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or hydraulic equipment mechanics. Always depressurize and drain the system before removing the old seal. Clean the gland thoroughly and lightly lubricate the O-ring with a compatible grease or fluid before seating to prevent tearing during assembly. Avoid rolling or twisting the ring into the groove — seat it evenly around the full circumference.