V90 Backup Ring: Rectangular C.S. Shape, 15/64 in C.S., 4 43/64 in Inner Diam.
The V90 Backup Ring is a Viton® backup O-ring with a rectangular cross-section, supplied in a 2 PK. It features a 15/64 in cross-section, a 4 43/64 in inner diameter, and a durometer of 90 (MPN GR-V8-90-426/2).
SKU 3G-OTH-518614
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Product Description
The V90 Backup Ring is a Viton® backup O-ring with a rectangular cross-section, supplied in a 2 PK. It features a 15/64 in cross-section, a 4 43/64 in inner diameter, and a durometer of 90 (MPN GR-V8-90-426/2).
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 under dynamic or static loads, extending seal life in pumps, valves, and cylinders across industrial applications.
What are the specifications of the V90 Backup Ring GR-V8-90-426/2?
This Viton® backup ring has a rectangular cross-section, 15/64 in cross-section, 4 43/64 in inner diameter, and durometer 90. It comes in a 2 PK. The manufacturer part number is GR-V8-90-426/2.
Where to buy V90 Backup Ring GR-V8-90-426/2 worldwide?
3G Electric supplies the V90 Backup Ring GR-V8-90-426/2 worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this Viton® backup O-ring.
How to install a V90 Backup Ring?
Install the V90 Backup Ring on the low-pressure side of the O-ring in the gland. Ensure the groove is clean and free of burrs. Lubricate with compatible fluid to avoid pinching. Do not stretch the ring beyond its elastic limit.
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.









