S70221 is an AS568-221 red Silicone 70 Shore A O-Ring with an inside diameter of 1.421 in (36.09 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.699 in (43.15 mm). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.
Silicone is specified here for exceptionally wide service temperature range, physiological inertness and low toxicity. It resists many oxidizing chemicals, extreme heat and cold, and dry heat. Rated temperature range runs from -80°F (-62.2°C) to 450°F (232.2°C) in continuous service.
You will find this material specified across medical devices, electronics and electrical enclosures, and food and beverage processing.
This item is sold individually under part number S70221. Unit weight is approximately 1.708 g and nominal inside diameter is listed as 1 7/16 inch. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Description -221 RED SILICONE 70D O-RING
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 1.421 inch (36.09 mm)
Actual Outside Diameter 1.699 inch (43.15 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity