-334 BLACK BUNA 70D O-RING

The H70MD334 is an AS568-334 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 2.6 in (66.04 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.02 in (76.71 mm). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Buna-N (Nitrile) is specified here for low compression set under sustained load, strong abrasion and tear resistance. The compound resists petroleum-based oils, greases and lubricants, and many alcohols. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to ozone and direct sunlight or automotive brake fluid will shorten service life.

This o-ring is metal detectable for HACCP and foreign-body control programs. Maintenance and OEM teams specify it across fluid power, automotive, and hydraulic and pneumatic systems.

H70MD334 ships individually. Application requirements vary, so validate compatibility with your process conditions prior to installation.