Value Collection ZMSCH70334 O-ring Dash 334 Nitrile Nbr

Product Description

The VALUE COLLECTION ZMSCH70334 is a Dash 334 O-ring manufactured from Nitrile Butadiene Rubber (Buna-N), the most widely used elastomer in fluid sealing applications. It measures 2.625 inches inside diameter, 3.0000 inches outside diameter, and 0.1875 inches (3/16 inches) thick with a round cross section. Rated at 70 Shore A hardness, this O-ring delivers reliable sealing performance across a working temperature range of -40 degrees F to 250 degrees F. It provides excellent resistance to petroleum products along with strong compression set, tear, and abrasion resistance. HVAC technicians, plumbers, and maintenance professionals install this part in hydraulic, pneumatic, and fluid system connections where petroleum-based media is present.

This O-ring is suited for residential and commercial applications involving petroleum-based fluids, hydraulic circuits, fuel systems, and general mechanical assemblies. Its Buna-N compound makes it a standard choice for sealing pump housings, valve bodies, pipe fittings, and refrigeration or fluid-handling equipment. It conforms to SAE and MIL-Spec standards, making it appropriate for both commercial maintenance environments and light industrial service work where a consistent, dimensionally stable seal is required.

Key Features

• Buna-N (Nitrile Butadiene Rubber) construction with excellent resistance to petroleum products
• 70 Shore A hardness rating for firm, reliable sealing under compression
• Operating range of -40 degrees F to 250 degrees F
• Round cross section per Dash 334 sizing standard
• Meets SAE and MIL-Spec standards
• Strong tear and abrasion resistance for long service life in dynamic and static applications

Compatibility

Compatible with petroleum products and petroleum-based fluids. Designed as an OEM-style replacement or service O-ring for equipment requiring a Dash 334 Buna-N seal. Note: this O-ring is not FDA approved and should not be stored in direct sunlight or near motors or electrical equipment that may generate ozone.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or mechanical maintenance personnel. Before replacing any O-ring, shut off and depressurize the system fully and relieve any fluid or gas pressure at the service point. Lubricate the O-ring with a compatible fluid or approved O-ring lubricant before seating it to prevent nicks or rolling during assembly. Inspect the groove and mating surfaces for wear or contamination before installing the new seal.