Part number H7X108 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 108 mm (4.252 in), a cross section of 7 mm (0.276 in), and an outside diameter of 122 mm (4.8 in). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.
This material stands up to greases and lubricants, many alcohols, and water. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for low compression set under sustained load, reliable performance in both static and dynamic service. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in automotive brake fluid or strong acids.
You will find this material specified across construction equipment, general industrial maintenance, and agricultural equipment.
H7X108 ships individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.
description 7MM CS X 108MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 122 mm (4.8 inch)
Actual_CS 7 mm (0.276 inch)
Actual_ID 108 mm (4.252 inch)
ProductCode Description O-Rings - Metric - Commodity