Value Collection BDNA--9991-1 O-ring Dash 217 Nbr

Product Description

The VALUE COLLECTION BDNA--9991-1 is a Dash 217 O-ring used to create static or dynamic fluid and gas seals in plumbing, HVAC, and mechanical assemblies. It features a 1-3/16 inch inside diameter and a 1/8 inch cross-section thickness with a round cross-section profile. Molded from Nitrile Butadiene Rubber (NBR) with a Shore A durometer rating of 70, this O-ring provides reliable resistance to petroleum-based oils, hydraulic fluids, and common refrigerants. It is well suited for applications requiring a dimensionally consistent, industry-standard dash-sized seal. Licensed trades and maintenance technicians working on fluid-handling systems commonly stock this part for routine service calls.

This O-ring is appropriate for use in residential and light commercial plumbing fittings, HVAC service valves, compressor assemblies, and hydraulic connections where a Dash 217 inch-series seal is specified. The NBR compound performs across a broad service temperature range, making it a practical choice for both indoor mechanical rooms and outdoor equipment installations. It installs without adhesives in standard gland grooves sized for Dash 217 O-rings per standard inch-series dimensional tables.

Key Features

• Dash 217 inch-series O-ring with 1-3/16 inch inside diameter and 1/8 inch cross-section thickness
• Nitrile Butadiene Rubber (NBR) compound resists petroleum oils, hydraulic fluids, and common refrigerants
• Shore A 70 durometer provides a firm yet compressible seal suitable for moderate-pressure applications
• Round cross-section profile for consistent seating in standard Dash 217 gland grooves
• Inch-system dimensioning for straightforward replacement in existing assemblies

Compatibility

Designed as a standard Dash 217 inch-series replacement O-ring for plumbing fittings, HVAC service valves, and hydraulic or fluid-handling components that specify a 1-3/16 inch ID, 1/8 inch cross-section NBR seal.

Installation Notes

Depressurize and drain or isolate any system before replacing an O-ring seal. Plumbers, HVAC technicians, and mechanical maintenance personnel should inspect the gland groove for nicks or debris before seating the new ring. Apply a light coat of compatible lubricant to the O-ring prior to installation to prevent rolling or tearing during assembly. Do not use petroleum-based lubricants in systems where they may degrade other elastomeric components.