-338 BROWN FKM 90D O-RING

Viton® O-Ring, 3.1 in ID x 0.21 CS, 90A, Brown, -15 to 400°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Fluoroelastomer (FKM/Viton)
Dash Size
338
Durometer
90 Shore A
Cross Section Type
Round
Color
Brown
Minimum Temperature
-15°F (-26°C)
Maximum Temperature
400°F (204°C)
Nominal Cross Section
3/16 inch
Nominal Inside Diameter
3 1/8 inch
Nominal Outside Diameter
3 1/2 inch
Unit of Measure
EA
SKU:
VB90338
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Product Specification

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VB90338 is an AS568-338 brown Viton® (FKM) 90 Shore A O-Ring built to an inside diameter of 3.1 in (78.74 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.52 in (89.41 mm). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Viton® (FKM) is specified here for outstanding high-temperature capability and long service life in hot, chemically aggressive environments. This material stands up to many acids, aggressive chemicals, and chlorinated solvents. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where amines or low-molecular-weight organic acids are present.

You will find this material specified across aerospace, high-temperature process equipment, and chemical processing.

Stocked as VB90338 and sold individually. Unit weight is approximately 13.079 g. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Item
VB90338
Description
-338 BROWN FKM 90D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
3.1 inch (78.74 mm)
Actual Outside Diameter
3.52 inch (89.41 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity