Ordered as S70255, this is an AS568-255 red Silicone 70 Shore A O-Ring supplied with an inside diameter of 5.609 in (142.47 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.887 in (149.53 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
Silicone is known for very good compression set resistance across its range, physiological inertness and low toxicity. It resists weathering, many oxidizing chemicals, and extreme heat and cold. Service temperature is rated from -80°F (-62.2°C) through 450°F (232.2°C). Applications involving abrasive dynamic service or hydrocarbon fuels and oils call for a different compound.
Common environments for this compound include ovens and heated equipment, electronics and electrical enclosures, and food and beverage processing.
Order part number S70255, sold individually. Unit weight is approximately 6.27 g. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Description -255 RED SILICONE 70D O-RING
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 5.609 inch (142.47 mm)
Actual Outside Diameter 5.887 inch (149.53 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity