-373 BLACK BUNA 90D O-RING

Part number H90373 is an AS568-373 black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 8.975 in (227.97 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 9.395 in (238.63 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

This material stands up to many alcohols, hydraulic fluids, and water. That behavior comes from the compound itself: Buna-N (Nitrile) offers reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.

Maintenance and OEM teams specify it across automotive, hydraulic and pneumatic systems, and agricultural equipment.

H90373 ships individually. Unit weight is approximately 22.1004 g and nominal inside diameter is listed as 9 inch. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.