Ordered as VB75M4X126, this is a brown Viton® (FKM) 75 Shore A O-Ring built to an inside diameter of 126 mm (4.961 in), a cross section of 4 mm (0.157 in), and an outside diameter of 134 mm (5.28 in). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
Viton® (FKM) is specified here for outstanding high-temperature capability, excellent resistance to compression set and permeation. The material holds up against engine and transmission fluids, aromatic hydrocarbons, and petroleum oils and fuels. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). Applications involving hot water and steam or low-molecular-weight organic acids call for a different compound.
You will find this material specified across automotive fuel systems, semiconductor equipment, and aerospace.
Order part number VB75M4X126, sold individually. Review your operating media and conditions against this specification before installation.
Description 4MM CS X 126MM ID BROWN FKM 75D
Actual Inside Diameter 126 mm (4.961 inch)
Actual Cross Section 4 mm (0.157 inch)
Actual Outside Diameter 134 mm (5.28 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity