This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 125 mm (4.921 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 132 mm (5.2 in), catalogued under part number H3.5X125. It creates a positive seal at flange, piston and rod interfaces without added hardware.
Buna-N (Nitrile) is specified for strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. It resists water, propane and butane, and petroleum-based oils. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ozone and direct sunlight or automotive brake fluid.
Common environments for this compound include general industrial maintenance, construction equipment, and hydraulic and pneumatic systems.
H3.5X125 ships individually. Unit weight is approximately 4.747 g. 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 3.5MM CS X 125MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 132 mm (5.2 inch)
Actual_CS 3.5 mm (0.138 inch)
Actual_ID 125 mm (4.921 inch)
ProductCode Description O-Rings - Metric - Commodity