Buna 70-131-Black-Pk100

The SB-H70131-100 is an AS568-131 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 1.674 in (42.52 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.88 in (47.75 mm). This o-ring remains the most cost-effective sealing element available for pressurized assemblies. The catalog record notes: 1.875IDX1.6875"ODX.0938"CS.

Buna-N (Nitrile) is specified for low compression set under sustained load, strong abrasion and tear resistance. This material stands up to many alcohols, petroleum-based oils, and greases and lubricants. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Verify compatibility before use with polar solvents or ozone and direct sunlight.

Common environments for this compound include agricultural equipment, fluid power, and construction equipment.

Reference part number SB-H70131-100 when ordering; the item is sold by the bag. Check the compound against your process media, pressure and temperature before committing to a design. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.