N90 Bulk Packaged O-Ring: Buna-N, Round, 1/4 in C.S., 5 1/4 in I.D.
The N90 Bulk Packaged O-Ring is a Buna-N, round O-ring with a 1/4 in cross-section and 5 1/4 in inner diameter, durometer 90A, dash number 431, and an operating temperature range of -13°F to 250°F, supplied in a…
SKU 3G-OTH-514545
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Product Description
The N90 Bulk Packaged O-Ring is a Buna-N, round O-ring with a 1/4 in cross-section and 5 1/4 in inner diameter, durometer 90A, dash number 431, and an operating temperature range of -13°F to 250°F, supplied in a 100-pack (MPN GR-N90431/100).
Frequently Asked Questions
What is the N90 Buna-N O-Ring used for?
The N90 Buna-N O-Ring is used for sealing static or dynamic applications in hydraulic and pneumatic systems, pumps, valves, and industrial machinery. Its 90A durometer provides firm compression resistance, making it suitable for moderate-pressure sealing in oil, fuel, and water environments.
What are the specifications of the N90 Bulk Packaged O-Ring?
The N90 O-Ring has a 1/4 in cross-section and 5 1/4 in inner diameter, durometer 90A, dash number 431, and an operating temperature range of -13°F to 250°F. It is made of Buna-N (Nitrile) rubber, round profile, and comes in a 100-pack with MPN GR-N90431/100.
Where to buy N90 O-Rings in worldwide?
3G Electric supplies the N90 Buna-N O-Ring (MPN GR-N90431/100) to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this 100-pack of 90A durometer O-rings.
How to select the right N90 O-Ring size?
To select the correct N90 O-Ring, match the inner diameter (I.D.) and cross-section (C.S.) to your gland dimensions. For this part, use a 5 1/4 in I.D. and 1/4 in C.S. Ensure the durometer (90A) suits your pressure and temperature range (-13°F to 250°F). Consult a seal design guide for groove dimensions.
N90 Products
3G Electric supplies N90 buna-n o-rings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









