The H2.5X57 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 57 mm (2.244 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 62 mm (2.44 in). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. The compound resists water, greases and lubricants, and petroleum-based oils. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.
You will find this material specified across construction equipment, agricultural equipment, and automotive.
Order part number H2.5X57, sold individually. Unit weight is approximately 1.1066 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. 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 57MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 62 mm (2.44 inch)
Actual_CS 2.5 mm (0.098 inch)
Actual_ID 57 mm (2.244 inch)
ProductCode Description O-Rings - Metric - Commodity