V90 Backup Ring: Rectangular C.S. Shape, 3/16 in C.S., 3 49/64 in Inner Diam.
The V90 Backup Ring is a rectangular cross-section Viton® backup O-ring with a 3/16 in cross-section, 3 49/64 in inner diameter, and 90 durometer hardness, supplied in a 3 PK configuration (MPN GR-V8-90-343/3). 3G…
SKU 3G-OTH-518507
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Product Description
The V90 Backup Ring is a rectangular cross-section Viton® backup O-ring with a 3/16 in cross-section, 3 49/64 in inner diameter, and 90 durometer hardness, supplied in a 3 PK configuration (MPN GR-V8-90-343/3). 3G Electric interprets customer demand and delivers genuine industrial equipment across 14 departments — and far more — with specialist depth in combustion, pumps and controls as an authorised distributor for brands including FBR, Interpump, Riello, Beckett, Schneider, ABB, Siemens, SKF, Festo, and Fluke.
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. Its rectangular cross-section and 90 durometer Viton® material provide reliable sealing in demanding industrial applications across machining, power transmission, and fluid handling.
What are the specifications of the V90 Backup Ring?
The V90 Backup Ring (MPN GR-V8-90-343/3) has a rectangular cross-section shape, 3/16 in cross-section, 3 49/64 in inner diameter, and 90 durometer hardness. It is supplied as a 3 PK and made from Viton® for chemical and temperature resistance.
Where to buy V90 Backup Rings worldwide?
3G Electric supplies V90 Backup Rings worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source genuine Viton® backup O-rings and deliver to your facility, ensuring compliance with your procurement requirements.
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 ring is not twisted and seats flat against the groove wall. Lubricate with compatible fluid to prevent damage during assembly. Avoid sharp edges that could cut the Viton® material.
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.









