Buna 70-353-Black-Pk5

SB-H70353-5 is an AS568-353 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 4.975 in (126.37 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.395 in (137.03 mm). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint. The catalog record notes: 0.210CSX4.975"IDX5.395"OD.

Buna-N (Nitrile) offers reliable performance in both static and dynamic service, strong abrasion and tear resistance. Expect good resistance to many alcohols, propane and butane, and hydraulic fluids. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Exposure to ketones or strong acids will shorten service life.

Common environments for this compound include hydraulic and pneumatic systems, automotive, and general industrial maintenance.

Reference part number SB-H70353-5 when ordering; the item is sold by the bag. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.