Value Collection BDNA--9994-3 O-ring Dash 328 Nbr

Product Description

The VALUE COLLECTION BDNA--9994-3 is a Dash 328 O-ring manufactured from Nitrile Butadiene Rubber (NBR) with a round cross section. It measures 1-7/8 inches inner diameter and 3/16 inches thick, with a durometer hardness rating of 70 Shore A. NBR compound provides reliable resistance to petroleum-based fluids, hydraulic oils, and fuels, making this O-ring a standard choice for fluid sealing in HVAC, plumbing, and mechanical systems. Licensed trades and maintenance technicians install this part as a static or dynamic face seal wherever an inch-system Dash 328 O-ring is specified.

This O-ring is suited for residential and light commercial applications including HVAC refrigerant service ports, plumbing fittings, pump assemblies, and hydraulic connections that call for an inch-system Dash 328 seal. The NBR material performs across a broad range of operating temperatures encountered in typical trade installations. Sold individually, with a minimum order quantity of 10 units per order.

Key Features

• Dash 328 inch-system standard sizing for broad interchangeability
• 1-7/8 inch inside diameter with 3/16 inch cross-section thickness
• Round cross section for consistent groove seating and even compression
• 70 Shore A durometer for firm yet compressible sealing performance
• NBR compound resists petroleum oils, hydraulic fluids, and fuels

Compatibility

Designed as an OEM-style replacement or service O-ring for any application specifying an inch-system Dash 328 O-ring in Nitrile Butadiene Rubber.

Installation Notes

Installation is typically performed by licensed HVAC technicians, plumbers, or mechanical maintenance professionals. Always depressurize and isolate the system before removing the old O-ring to prevent fluid release or injury. Inspect the seating groove for nicks or debris before installing the new O-ring, and apply a compatible lubricant to ease installation and prevent tearing. Follow applicable codes such as NEC, IPC, or IFGC as relevant to the system being serviced.