-331 BLACK FKM 90D O-RING

Viton® O-Ring, 2.225 in ID x 0.21 CS, 90A, Black, -15 to 400°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Fluoroelastomer (FKM/Viton)
Dash Size
331
Durometer
90 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-15°F (-26°C)
Maximum Temperature
400°F (204°C)
Nominal Cross Section
3/16 inch
Nominal Inside Diameter
2 1/4 inch
Nominal Outside Diameter
2 5/8 inch
Unit of Measure
EA
SKU:
V90331
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Product Specification

-
This o-ring is supplied in AS568-331 black Viton® (FKM) 90 Shore A measuring an inside diameter of 2.225 in (56.52 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 2.645 in (67.18 mm), catalogued under part number V90331. It creates a positive seal at flange, piston and rod interfaces without added hardware.

Viton® (FKM) is specified here for excellent resistance to compression set and permeation, long service life in hot, chemically aggressive environments. The compound resists petroleum oils and fuels, many acids, and chlorinated solvents. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). It should not be specified for service in ketones and esters or hot water and steam.

Typical settings include chemical processing, oil and gas, and high-temperature process equipment.

Order part number V90331, sold individually. Unit weight is approximately 8.273 g. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
V90331
Description
-331 BLACK FKM 90D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
2.225 inch (56.52 mm)
Actual Outside Diameter
2.645 inch (67.18 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity