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The VALUE COLLECTION BDNA-9981 is a Dash 113 O-ring manufactured from Nitrile Butadiene Rubber (NBR) with a round cross section. It measures 9/16 inches inside diameter and 3/32 inches in thickness. NBR compounds provide reliable resistance to petroleum-based fluids, making this O-ring well suited for sealing applications in hydraulic, pneumatic, plumbing, and HVAC systems. Licensed tradespeople and maintenance technicians use this style of O-ring when replacing worn or damaged seals in valves, fittings, pumps, and compressors where fluid or gas containment is required.
This O-ring fits applications that call for a standard Dash 113 size in the inch measurement system. It is commonly found in residential and light commercial HVAC equipment, refrigeration service, plumbing valve bodies, and fluid-handling assemblies. Its NBR construction makes it appropriate for use with water, oil, and many petroleum-based fluids. The round cross section seats reliably in standard O-ring grooves machined to Dash 113 specifications.
Designed as an OEM-style replacement O-ring for any valve, fitting, pump, or fluid-handling component requiring a Dash 113 inch-system O-ring with a 9/16 inch inside diameter and 3/32 inch thickness.
O-ring replacement is typically performed by licensed plumbers, HVAC technicians, or refrigeration mechanics depending on the application. Always relieve system pressure and isolate the component before removing the old seal. Lightly lubricate the new O-ring with a compatible fluid or O-ring lubricant before seating to prevent pinching or tearing during assembly. Verify the groove dimensions match Dash 113 specifications before installation to ensure a proper seal.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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