Part number H90M2.5X55 is a black Buna-N (Nitrile) 90 Shore A O-Ring built to an inside diameter of 55 mm (2.165 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 60 mm (2.36 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
As a material, Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. It resists water, propane and butane, and petroleum-based oils. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in strong acids or ketones.
Common environments for this compound include construction equipment, hydraulic and pneumatic systems, and automotive.
H90M2.5X55 ships individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
description 2.5MM CS X 55MM ID BLACK BUNA 90D
uf_description2 METRIC O-RING
Actual_OD 60 mm (2.36 inch)
Actual_CS 2.5 mm (0.098 inch)
Actual_ID 55 mm (2.165 inch)
ProductCode Description O-Rings - Metric - Commodity