BUNA 90 BACK-UP RING KIT

The HB90K is a Buna-N (Nitrile) O-Ring Kit. This o-ring kit reduces downtime by putting the right size within arm's reach at the point of repair.

Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer, 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). Verify compatibility before use with polar solvents or strong acids.

Typical settings include automotive, general industrial maintenance, and construction equipment.

Reference part number HB90K when ordering; the item is sold individually. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.