Ordered as H70402, this is an AS568-402 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 1.6 in (40.64 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 2.15 in (54.61 mm). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.
As a material, Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer and low compression set under sustained load. The material holds up against many alcohols, water, and greases and lubricants. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It is not the right choice where polar solvents or ketones are present.
You will find this material specified across automotive, fluid power, and general industrial maintenance.
Reference part number H70402 when ordering; the item is sold individually. Unit weight is approximately 7.026 g and nominal inside diameter is listed as 1 5/8 inch. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description -402 BLACK BUNA 70D O-RING
uf_description2 0.275" (6.99MM) CS X 1.600" (40.64MM) ID
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 1.6 inch (40.64 mm)
Actual_OD 2.15 inch (54.61 mm)
ProductCode Description O-Rings - Bulk - Commodity