-243 BROWN FKM 90D O-RING

Viton® O-Ring, 4.109 in ID x 0.139 CS, 90A, Brown, -15 to 400°F

Status
Available
Est. Ship Date
1 Nov 2026
Material
Fluoroelastomer (FKM/Viton)
Dash Size
243
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
1/8 inch
Nominal Inside Diameter
4 1/8 inch
Nominal Outside Diameter
4 3/8 inch
Unit of Measure
EA
SKU:
VB90243
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Product Specification

-
APG stocks the VB90243, an AS568-243 brown Viton® (FKM) 90 Shore A O-Ring supplied with an inside diameter of 4.109 in (104.37 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.387 in (111.43 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Viton® (FKM) offers very low compression set at elevated temperature and outstanding high-temperature capability. The compound resists petroleum oils and fuels, many acids, and aggressive chemicals. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). Verify compatibility before use with amines or low-molecular-weight organic acids.

Common environments for this compound include chemical processing, automotive fuel systems, and high-temperature process equipment.

This item is sold individually under part number VB90243. Unit weight is approximately 7.414 g and nominal inside diameter is listed as 4 1/8 inch. Check the compound against your process media, pressure and temperature before committing to a design.
Item
VB90243
Description
-243 BROWN FKM 90D O-RING
Actual Cross Section
0.139 inch (3.53 mm)
Actual Inside Diameter
4.109 inch (104.37 mm)
Actual Outside Diameter
4.387 inch (111.43 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity