8-141 BLACK BUNA 90D BACK-UP RING

Part number HB90141 is an AS568-141 black Buna-N (Nitrile) 90 Shore A Back-Up Ring supplied with an inside diameter of 2.3 in (58.42 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.506 in (63.65 mm). A back-up ring extends o-ring service life by supporting the seal against extrusion under high pressure.

Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. The material holds up against propane and butane, water, and hydraulic fluids. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in ketones or strong acids.

Typical settings include fluid power, agricultural equipment, and general industrial maintenance.

This item is sold individually under part number HB90141. Unit weight is approximately 0.6834 g. Review your operating media and conditions against this specification before installation.