-342 BLACK BUNA 90D O-RING

APG stocks the H90342, an AS568-342 black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 3.6 in (91.44 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.02 in (102.11 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

Expect good resistance to hydraulic fluids, petroleum-based oils, and greases and lubricants. Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs and low compression set under sustained load. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in automotive brake fluid or polar solvents.

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

This item is sold individually under part number H90342. Unit weight is approximately 8.77 g and nominal inside diameter is listed as 3 5/8 inch. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.