APG stocks the H2X28.5, a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 28.5 mm (1.122 in), a cross section of 2 mm (0.079 in), and an outside diameter of 32.5 mm (1.28 in). An o-ring delivers dependable bidirectional sealing in a compact groove envelope. Additional detail on this item: Metric O-RING, JIS S29.
This material stands up to petroleum-based oils, many alcohols, and propane and butane. Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, the most widely specified general-purpose sealing elastomer. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Exposure to automotive brake fluid or strong acids will shorten service life.
You will find this material specified across automotive, construction equipment, and general industrial maintenance.
H2X28.5 ships individually. Unit weight is approximately 0.37 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description 2MM CS X 28.5MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING, JIS S29
Actual_OD 32.5 mm (1.28 inch)
Actual_CS 2 mm (0.079 inch)
Actual_ID 28.5 mm (1.122 inch)
ProductCode Description O-Rings - Metric - Commodity