Value Collection ZMSCH70213 O-ring Dash 213 Nitrile Nbr

Product Description

The VALUE COLLECTION ZMSCH70213 is a Dash 213 Buna-N (nitrile butadiene rubber) O-ring used to create reliable fluid-tight seals in hydraulic, pneumatic, and plumbing assemblies. It measures 0.921 inches inside diameter, 1.188 inches outside diameter, and 0.125 inches thick with a round cross section. Rated at 70 Shore A hardness, this O-ring handles a working temperature range of -40 degrees F to 250 degrees F and is compatible with petroleum-based fluids. It is installed by licensed plumbers, HVAC technicians, and industrial maintenance professionals wherever a standard Dash 213 O-ring is specified.

This O-ring is suited for residential and commercial applications involving hydraulic lines, fuel systems, refrigerant service ports, valve stems, and general-purpose plumbing fittings. Its Buna-N compound is the most widely used O-ring elastomer in trade service work because of its broad chemical resistance and mechanical durability with petroleum products. The part is sold in a package quantity of 100 units, making it practical for shop stock or service van inventory.

Key Features

• Buna-N (Nitrile Butadiene Rubber) compound — excellent resistance to petroleum-based fluids and lubricants
• Dash 213 standard sizing: 0.921 inches ID x 1.188 inches OD x 0.125 inches thick
• 70 Shore A hardness rating — suitable for hard-service sealing applications
• Wide temperature range: -40 degrees F to 250 degrees F
• Round cross section for consistent compression and sealing surface contact
• Meets SAE and MIL-Spec standards

Compatibility

Designed as a standard Dash 213 O-ring replacement compatible with petroleum-product service environments including hydraulic systems, fuel lines, and plumbing assemblies that specify a Buna-N elastomer seal.

Installation Notes

Installation is performed by licensed plumbers, HVAC technicians, or hydraulic system technicians. Always depressurize the system and shut off fluid supply before removing or installing O-rings. Inspect the groove and mating surfaces for burrs or damage before seating the new ring. 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 elastomers.