Ordered as H2.4X12.8, this is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 12.8 mm (0.504 in), a cross section of 2.4 mm (0.094 in), and an outside diameter of 17.6 mm (0.69 in). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, strong abrasion and tear resistance. Expect good resistance to greases and lubricants, petroleum-based oils, and hydraulic fluids. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or strong acids are present.
Typical settings include construction equipment, fluid power, and automotive.
Reference part number H2.4X12.8 when ordering; the item is sold 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 2.4MM CS X 12.8MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 17.6 mm (0.69 inch)
Actual_CS 2.4 mm (0.094 inch)
Actual_ID 12.8 mm (0.504 inch)
ProductCode Description O-Rings - Metric - Commodity