3.1MM CS X 124.4MM ID BLACK BUNA 90D

Ordered as H90M3.1X124.4, this is a black Buna-N (Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 124.4 mm (4.898 in), a cross section of 3.1 mm (0.122 in), and an outside diameter of 130.6 mm (5.14 in). The o-ring delivers dependable bidirectional sealing in a compact groove envelope. This item is further identified as Metric O-RING, JIS G125.

The compound resists hydraulic fluids, water, and greases and lubricants. Buna-N (Nitrile) is specified for strong abrasion and tear resistance, low compression set under sustained load. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where strong acids or ozone and direct sunlight are present.

Typical settings include construction equipment, hydraulic and pneumatic systems, and automotive.

Reference part number H90M3.1X124.4 when ordering; the item is sold individually. Unit weight is approximately 4.1733 g. Check the compound against your process media, pressure and temperature before committing to a design. 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.