Ordered as H5X127, this is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 127 mm (5 in), a cross section of 5 mm (0.197 in), and an outside diameter of 137 mm (5.39 in). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
This material stands up to greases and lubricants, water, and hydraulic fluids. Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, low compression set under sustained load. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to polar solvents or automotive brake fluid will shorten service life.
Common environments for this compound include hydraulic and pneumatic systems, automotive, and general industrial maintenance.
Reference part number H5X127 when ordering; the item is sold individually. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description 5MM CS X 127MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 137 mm (5.39 inch)
Actual_CS 5 mm (0.197 inch)
Actual_ID 127 mm (5 inch)
ProductCode Description O-Rings - Metric - Commodity