-212 BLACK BUNA 90D O-RING

This o-ring is supplied in AS568-212 black Buna-N (Nitrile) 90 Shore A built to an inside diameter of 0.859 in (21.82 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.137 in (28.88 mm), catalogued under part number H90212. It compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, strong abrasion and tear resistance. This material stands up to many alcohols, hydraulic fluids, and greases and lubricants. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It is not the right choice where automotive brake fluid or polar solvents are present.

Common environments for this compound include construction equipment, automotive, and hydraulic and pneumatic systems.

Order part number H90212, sold individually. Unit weight is approximately 0.0011 g and nominal inside diameter is listed as 7/8 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.