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-353 RED SILICONE 70D O-RING

Silicone O-Ring, 4.975 in ID x 0.21 CS, 70A, Red, Metal Det., -80 to 450°F

Status
Out of Stock
Est. Ship Date
21 Oct 2026
Material
Silicone
Dash Size
353
Durometer
70 Shore A
Cross Section Type
Round
Color
Red
Minimum Temperature
-80°F (-62.2°C)
Maximum Temperature
450°F (232°C)
Nominal Cross Section
3/16 inch
Nominal Inside Diameter
5 inch
Nominal Outside Diameter
5 3/8 inch
Unit of Measure
EA
SKU:
S70MD353

Product Specification

-
This o-ring is supplied in AS568-353 red Silicone 70 Shore A built to an inside diameter of 4.975 in (126.37 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.395 in (137.03 mm), catalogued under part number S70MD353. It remains the most cost-effective sealing element available for pressurized assemblies.

The compound resists ozone and UV exposure, weathering, and many oxidizing chemicals. That behavior comes from the compound itself: Silicone delivers an exceptionally wide service temperature range and flexibility that holds at very low temperatures. Service temperature is rated from -80°F (-62.2°C) through 450°F (232.2°C). Exposure to steam above its rated range or concentrated acids will shorten service life.

This o-ring is metal detectable for HACCP and foreign-body control programs. It sees regular use in sanitary process lines, pharmaceutical manufacturing, and electronics and electrical enclosures.

S70MD353 ships individually. Nominal inside diameter is listed as 5 inch. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
Item
S70MD353
Description
-353 RED SILICONE 70D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
4.975 inch (126.37 mm)
Actual Outside Diameter
5.395 inch (137.03 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
Yes
NSF Certified
No
Product Code
6012
Product Category
O-Rings - FDA / Metal Detectable