HSN (HNBR) 80 568-258

The HSN80258 is an AS568-258 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring built to an inside diameter of 5.984 in (151.99 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 6.262 in (159.05 mm). This o-ring delivers dependable bidirectional sealing in a compact groove envelope.

As a material, HNBR (Hydrogenated Nitrile) is specified for the oil resistance of nitrile with substantially better heat capability and strong resistance to rapid gas decompression. The compound resists petroleum oils and fuels, sour gas and amine inhibitors, and modern refrigerants. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). Verify compatibility before use with esters or strong oxidizing acids.

Maintenance and OEM teams specify it across commercial refrigeration, automotive air conditioning, and engine timing systems.

Order part number HSN80258, sold individually. Unit weight is approximately 0.0061 g. Review your operating media and conditions against this specification before installation.