Buna 70-320-Black-Pk50

The SB-H70320-50 is an AS568-320 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 1.1 in (27.94 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.52 in (38.61 mm). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. Source specification: 1.5IDX1.125"ODX.1875"CS.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs and low compression set under sustained load. This material stands up to greases and lubricants, propane and butane, and petroleum-based oils. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to automotive brake fluid or polar solvents will shorten service life.

You will find this material specified across agricultural equipment, automotive, and construction equipment.

SB-H70320-50 ships by the bag. Nominal inside diameter is listed as 1 1/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.