Value Collection BDNA--9984-15 O-ring Dash 137 Nbr

Product Description

The VALUE COLLECTION BDNA--9984-15 is a Dash 137 O-ring manufactured from Nitrile Butadiene Rubber (NBR) with a round cross section. It measures 2-1/16 inches inside diameter and 3/32 inches in thickness, with a durometer rating of 70 Shore A. NBR material provides solid resistance to petroleum-based oils, fuels, and hydraulic fluids, making this O-ring a reliable sealing element in fluid system connections. Licensed plumbers, HVAC technicians, and industrial maintenance professionals install this type of O-ring as a static or dynamic seal in fittings, valves, and fluid-handling assemblies.

This O-ring is suited for use in residential and light commercial plumbing, HVAC refrigerant-side components, hydraulic circuits, and general fluid system maintenance. Its inch-series Dash 137 sizing follows standard AS568 dimensional conventions, allowing straightforward cross-referencing and replacement in any application that calls for a Dash 137 O-ring. NBR construction makes it appropriate for service in environments with exposure to mineral oils, water, and many common refrigeration oils, though it is not recommended for use with aromatic fuels or ozone-heavy environments.

Key Features

• Dash 137 sizing per inch-series AS568 standard — 2-1/16 inches ID, 3/32 inches thick
• Nitrile Butadiene Rubber (NBR) material resists petroleum oils, hydraulic fluids, and water
• Round cross section for consistent sealing across static and low-speed dynamic applications
• 70 Shore A durometer provides a balance of flexibility and compression resistance
• Inch-series measurement system for direct replacement in standard U.S. plumbing and HVAC fittings

Compatibility

Designed as a standard Dash 137 inch-series O-ring replacement for use in plumbing, HVAC, hydraulic, and general fluid system applications requiring a 2-1/16 inch ID, 3/32 inch thick NBR seal.

Installation Notes

O-rings of this type are installed by licensed plumbers, HVAC technicians, or qualified maintenance personnel. Before replacing any O-ring in a pressurized system, fully depressurize and drain or recover the fluid from the affected line or component. Lightly lubricate the O-ring with a compatible fluid or O-ring lubricant prior to seating to prevent twisting or tearing during assembly. Inspect the seating groove for nicks, burrs, or debris before installation.