Buna 70-322-Black-Pk50

Ordered as SB-H70322-50, this is an AS568-322 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 1.225 in (31.12 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.645 in (41.78 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. The catalog record notes: 1.625IDX1.25"ODX.1875"CS.

Buna-N (Nitrile) is specified here for low compression set under sustained load and economical choice for high-volume maintenance programs. 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). It is not the right choice where polar solvents or automotive brake fluid are present.

You will find this material specified across automotive, agricultural equipment, and general industrial maintenance.

Order part number SB-H70322-50, sold by the bag. Nominal inside diameter is listed as 1 1/4 inch. Review your operating media and conditions against this specification before installation.