-243 BLACK FKM 75D O-RING

Viton® O-Ring, 4.109 in ID x 0.139 CS, 75A, Black, -15 to 400°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Fluoroelastomer (FKM/Viton)
Dash Size
243
Durometer
75 Shore A
Cross Section Type
Round
Color
Black
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:
V70243
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Product Specification

-
Part number V70243 is an AS568-243 black Viton® (FKM) 75 Shore A O-Ring measuring 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 creates a positive seal at flange, piston and rod interfaces without added hardware.

Viton® (FKM) is widely chosen for outstanding high-temperature capability and very low compression set at elevated temperature. This material stands up to petroleum oils and fuels, aromatic hydrocarbons, and aggressive chemicals. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C).

It sees regular use in chemical processing, high-temperature process equipment, and semiconductor equipment.

V70243 ships individually. Unit weight is approximately 6.11 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.
Item
V70243
Description
-243 BLACK FKM 75D 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