Ordered as H2.5X77, this is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 77 mm (3.031 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 82 mm (3.23 in). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
As a material, Buna-N (Nitrile) is widely chosen for an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. The material holds up against many alcohols, petroleum-based oils, and greases and lubricants. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).
Typical settings include construction equipment, hydraulic and pneumatic systems, and general industrial maintenance.
This item is sold individually under part number H2.5X77. Unit weight is approximately 1.5273 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.
description 2.5MM CS X 77MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 82 mm (3.23 inch)
Actual_CS 2.5 mm (0.098 inch)
Actual_ID 77 mm (3.031 inch)
ProductCode Description O-Rings - Metric - Commodity