V90 Backup Ring: Rectangular C.S. Shape, 3/16 in C.S.
The V90 Backup Ring is a Viton® backup O-ring with a rectangular cross-section shape, a 3/16 in cross-section, and an 8 25/32 in inner diameter. It has a durometer of 90 and is identified by manufacturer part number…
SKU 3G-OTH-518238
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Product Description
The V90 Backup Ring is a Viton® backup O-ring with a rectangular cross-section shape, a 3/16 in cross-section, and an 8 25/32 in inner diameter. It has a durometer of 90 and is identified by manufacturer part number GR-V8-90-372.
Frequently Asked Questions
What is a V90 backup ring used for?
A V90 backup ring prevents O-ring extrusion in high-pressure hydraulic and pneumatic systems. It supports the O-ring in gland grooves, extending seal life under dynamic or static loads. Common in industrial machinery, pumps, and valves where reliable sealing is critical.
What are the specifications of the V90 backup ring?
The V90 backup ring has a rectangular cross-section shape, 3/16 in cross-section, and 8 25/32 in inner diameter. It is made of Viton® with a durometer of 90. The manufacturer part number is GR-V8-90-372.
Where to buy V90 backup rings worldwide?
3G Electric supplies the V90 backup ring worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine Viton® backup rings and support procurement across 14 departments.
How to install a V90 backup ring?
Install the V90 backup ring on the low-pressure side of the O-ring in the gland groove. Ensure the ring is not twisted and seats flat against the groove wall. Lubricate with compatible fluid to avoid damage during assembly. Follow standard O-ring installation practices for best results.
V90 Products
3G Electric supplies V90 viton® backup o-rings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









