Eaton 4629X6 O-ring 0.364 Id X 0.504 Od Buna-n Black

Product Description

The EATON 4629X6 is a Buna-N nitrile butadiene rubber o-ring designed for static and dynamic sealing applications in fluid and pneumatic systems. It features a round cross section with an inside diameter of 0.364 inches, an outside diameter of 0.504 inches, and a cross-section thickness of 0.07 inches. The black Buna-N compound provides reliable resistance to petroleum-based oils, fuels, and common hydraulic fluids, making it a standard choice for sealing fittings, valves, and connectors in plumbing, HVAC, and fluid-handling assemblies. Licensed plumbers, HVAC technicians, and hydraulic system technicians install this type of o-ring as part of routine maintenance and component replacement work.

This o-ring is suited for use in residential and light commercial fluid systems where a small-diameter elastomeric seal is required. Typical applications include valve stems, port plugs, compression fittings, and threaded hydraulic or pneumatic connections. The Buna-N material performs well in water, oil, and many refrigerant-adjacent service environments where a cost-effective, general-purpose seal is appropriate. This item is sold individually, with a minimum order quantity of 25 units.

Key Features

• Buna-N (nitrile butadiene rubber) construction resists petroleum oils, hydraulic fluids, and water
• Round cross-section profile for consistent seating in standard o-ring grooves
• Inside diameter of 0.364 inches, outside diameter of 0.504 inches, cross-section thickness of 0.07 inches
• Black color for standard field identification
• Lightweight at 0.01 pounds per unit — suitable for high-count stocking

Compatibility

Designed as a general-purpose replacement o-ring for plumbing, HVAC, and fluid-handling assemblies requiring a 0.364 inches ID round cross-section Buna-N seal. Verify groove dimensions before installation to confirm fitment.

Installation Notes

Installation should be performed by a qualified plumber, HVAC technician, or hydraulic systems technician. Depressurize and isolate the system before removing the old o-ring and installing the replacement. Lightly lubricate the o-ring with a compatible lubricant prior to seating to reduce the risk of tearing or rolling during assembly. Do not stretch the o-ring beyond its rated inside diameter when installing over a fitting or shaft.