Ordered as S1X7, this is a red Silicone 70 Shore A O-Ring supplied with an inside diameter of 7 mm (0.276 in), a cross section of 1 mm (0.039 in), and an outside diameter of 9 mm (0.35 in). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
Expect good resistance to dry heat, extreme heat and cold, and ozone and UV exposure. That behavior comes from the compound itself: Silicone offers excellent electrical insulating properties, physiological inertness and low toxicity. Service temperature is rated from -80°F (-62.2°C) through 450°F (232.2°C).
This o-ring meets FDA requirements for food contact. You will find this material specified across sanitary process lines, ovens and heated equipment, and pharmaceutical manufacturing.
Order part number S1X7, sold individually. Unit weight is approximately 0.0278 g. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
description 1MM CS X 7MM ID RED SILICONE 70D
uf_description2 METRIC O-RING
Actual_OD 9 mm (0.35 inch)
Actual_CS 1 mm (0.039 inch)
Actual_ID 7 mm (0.276 inch)
ProductCode Description O-Rings - Metric - Commodity