-344 RED SILICONE 70D O-RING

Silicone O-Ring, 3.85 in ID x 0.21 CS, 70A, Red, -80 to 450°F

Status
Available
Est. Ship Date
1 Nov 2026
Material
Silicone
Dash Size
344
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
3 7/8 inch
Nominal Outside Diameter
4 1/4 inch
Unit of Measure
EA
SKU:
S70344
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Product Specification

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S70344 is an AS568-344 red Silicone 70 Shore A O-Ring with an inside diameter of 3.85 in (97.79 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.27 in (108.46 mm). In service, this o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

The compound resists ozone and UV exposure, dry heat, and weathering. Silicone is known for an exceptionally wide service temperature range and very good compression set resistance across its range. Rated temperature range runs from -80°F (-62.2°C) to 450°F (232.2°C) in continuous service. Verify compatibility before use with steam above its rated range or concentrated acids.

Common environments for this compound include medical devices, sanitary process lines, and pharmaceutical manufacturing.

S70344 ships individually. Unit weight is approximately 9.944 g and nominal inside diameter is listed as 3 7/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Item
S70344
Description
-344 RED SILICONE 70D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
3.85 inch (97.79 mm)
Actual Outside Diameter
4.27 inch (108.46 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity