APG stocks the H2.5X11.5, a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 11.5 mm (0.453 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 16.5 mm (0.65 in). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, economical choice for high-volume maintenance programs. Expect good resistance to petroleum-based oils, greases and lubricants, and hydraulic fluids. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with automotive brake fluid or ketones.
You will find this material specified across automotive, construction equipment, and agricultural equipment.
Reference part number H2.5X11.5 when ordering; the item is sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
description 2.5MM CS X 11.5MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 16.5 mm (0.65 inch)
Actual_CS 2.5 mm (0.098 inch)
Actual_ID 11.5 mm (0.453 inch)
ProductCode Description O-Rings - Metric - Commodity