Part number H90M1.5X8.5 is a black Buna-N (Nitrile) 90 Shore A O-Ring with an inside diameter of 8.5 mm (0.335 in), a cross section of 1.5 mm (0.059 in), and an outside diameter of 11.5 mm (0.45 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. The catalog record notes: Metric O-RING, JIS S9.
As a material, Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. The compound resists petroleum-based oils, many alcohols, and water. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Applications involving automotive brake fluid or strong acids call for a different compound.
It sees regular use in general industrial maintenance, automotive, and hydraulic and pneumatic systems.
This item is sold individually under part number H90M1.5X8.5. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
description 1.5MM CS X 8.5MM ID BLACK BUNA 90D
uf_description2 METRIC O-RING, JIS S9
Actual_OD 11.5 mm (0.45 inch)
Actual_CS 1.5 mm (0.059 inch)
Actual_ID 8.5 mm (0.335 inch)
ProductCode Description O-Rings - Metric - Commodity