APG stocks the HSN80248, an AS568-248 green HNBR (Hydrogenated Nitrile) 80 Shore A O-Ring measuring an inside diameter of 4.734 in (120.24 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.012 in (127.3 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
As a material, HNBR (Hydrogenated Nitrile) is specified for improved ozone and weathering resistance over standard nitrile, excellent abrasion and tear strength. The compound resists heat and oxidation, modern refrigerants, and petroleum oils and fuels. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). It is not the right choice where esters or ketones are present.
You will find this material specified across automotive air conditioning, engine timing systems, and oilfield and downhole equipment.
Stocked as HSN80248 and sold individually. Unit weight is approximately 5.0959 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Description HSN (HNBR) 80 568-248
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 4.734 inch (120.24 mm)
Actual Outside Diameter 5.012 inch (127.3 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Premium