-129 BLACK BUNA 90D O-RING

This o-ring is supplied in AS568-129 black Buna-N (Nitrile) 90 Shore A measuring an inside diameter of 1.549 in (39.34 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.755 in (44.58 mm), catalogued under part number H90129. It compresses into its gland to block fluid or gas migration across a joint.

As a material, Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. The material holds up against hydraulic fluids, water, and many alcohols. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

Maintenance and OEM teams specify it across automotive, agricultural equipment, and construction equipment.

Stocked as H90129 and sold individually. Unit weight is approximately 0.962 g. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.