3.55MM CS X 36.5MM ID BLACK BUNA 70D

The H3.55X36.5 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 36.5 mm (1.437 in), a cross section of 3.55 mm (0.14 in), and an outside diameter of 43.6 mm (1.72 in). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.

This material stands up to petroleum-based oils, many alcohols, and greases and lubricants. Buna-N (Nitrile) offers low compression set under sustained load and the most widely specified general-purpose sealing elastomer. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Exposure to polar solvents or strong acids will shorten service life.

Maintenance and OEM teams specify it across fluid power, automotive, and construction equipment.

Order part number H3.55X36.5, sold individually. Unit weight is approximately 1.5311 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.