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405 Buna-N O-Ring, 70A Durometer, Round, Black, 2 ID, 2-1/2 OD, 1/4 Width (Pack of 5)
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405 Buna-N O-Ring, 70A Durometer, Round, Black, 2 ID, 2-1/2 OD, 1/4 Width (Pack of 5)
Buna-nitrile O-ring designed for sealing applications, offering high tensile strength and resistance to various conditions.
405 Buna-N O-Ring, 70A Durometer, Round, Black, 2" ID, 2-1/2" OD, 1/4" Width (Pack of 5)
Item #: 24401499

405 Buna-N O-Ring, 70A Durometer, Round, Black, 2" ID, 2-1/2" OD, 1/4" Width (Pack of 5)

Item #: 24401499

NAD 680

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

*All items will import from US

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Order now and get it around Friday, August 07
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Buna-nitrile O-ring designed for sealing applications, offering high tensile strength and resistance to various conditions.
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What Stands Out

Durable Material
Crafted from 70A durometer Buna-N, ensuring long-lasting durability and resistance to wear and tear for various industrial applications.
Optimal Size Range
With a 2" ID and 2-1/2" OD, these O-rings provide a perfect fit for numerous seals, optimizing performance in fluid applications and preventing leaks effectively.
Cost-Effective Pack
Sold in packs of five, this product offers excellent value, allowing users to stock up on essential O-rings without compromising budget, perfect for both professionals and DIY enthusiasts.

Product Details

Shop for 405 Buna-N O-Rings at Ubuy Namibia. Find the best deals on high-quality 70A Durometer O-Rings. Available in various sizes and pack of 5. Order now!
  • Made of Buna-nitrile for use with fluids and hydrocarbons
  • Operating temperature range: -30°F to 250°F
  • Round cross-section for sealing between cylindrical surfaces
  • 70A durometer for resistance to penetration
  • Meets Aerospace Standard AS568A
  • Compatible with petroleum, HFA, HFB, HFC fluids, vegetable oil, alcohol, acids, aliphatic hydrocarbons
Package Weight1 Pound

Who Should Buy?

Suitable For
  • Automotive Repair

    Ideal for sealing applications in automotive engines and transmission systems, providing reliable resistance against oil and chemicals.

  • Hydraulic Systems

    Perfect for use in hydraulic machinery where robust sealing is required to prevent leaks under high pressure.

  • Home Plumbing

    Useful in various plumbing applications to ensure leak-proof seals in faucets, valves, and pipe connections.

Not Suitable For
  • High Temperature Use

    Not suitable for applications exceeding 250°F, as Buna-N can degrade under extreme heat conditions.

Product Description

405 Buna-N O-Ring, 70A Durometer, Round, Black, 2" ID, 2-1/2" OD, 1/4" Width (Pack of 5)

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is a Buna-N O-Ring and what are its properties?

    Answer: A Buna-N O-Ring is a sealing product made from nitrile rubber, known for its excellent resistance to oils and fuels. With a 70A durometer, it offers a versatile balance of elasticity and hardness. Its round shape and specific dimensions (2" ID, 2-1/2" OD, 1/4" width) make it suitable for various applications, including automotive and industrial uses. The resilient material ensures a secure seal in environments that experience fluctuating temperatures and exposure to different chemicals.
  • Question: How do I know if the 2-inch ID O-Ring will fit my application?

    Answer: To ensure that the 2-inch inner diameter O-Ring is the right fit, measure the groove where the O-Ring will sit. It should match the specified 2" ID closely for effective sealing. Additionally, consider the groove width and depth to ensure proper compression without excessive stretching. Typical applications include hydraulic seals and low-pressure applications where effective sealing against leakage is required, making it ideal for various machinery and automotive parts.
  • Question: Can I use the 405 Buna-N O-Rings in high-temperature environments?

    Answer: While Buna-N O-Rings are effective in moderate temperatures, their performance can degrade at very high temperatures, typically beyond 212°F (100°C). For applications involving heat, it’s advisable to check the operational specifications. If your application involves exposure to elevated temperatures, consider using O-Rings specifically designed for heat resistance instead, to maintain performance and integrity over time in challenging environments.
  • Question: What industries commonly use Buna-N O-Rings?

    Answer: Buna-N O-Rings are widely used across various industries, including automotive, aerospace, manufacturing, and plumbing. Their ability to resist oil, hydraulic fluids, and other chemicals makes them a preferred choice for sealing applications in engines, pumps, and valves. They also find utility in household appliances, HVAC systems, and machinery, where sealing is vital for operational efficiency and preventing leaks.
  • Question: How do I properly install a Buna-N O-Ring?

    Answer: Proper installation of a Buna-N O-Ring involves ensuring a clean and smooth groove surface to avoid damaging the ring. Carefully place the O-Ring in its groove without twisting it, as this could lead to failure or leaks. It should fit snugly but not be overly stretched. Using lubrication can help in installation, particularly if the O-Ring is being seated in a tight space. Checking for proper fit after installation is critical to ensure functionality.
  • Question: What sets the 70A durometer Buna-N O-Ring apart from others?

    Answer: The 70A durometer rating indicates a medium hardness, making this Buna-N O-Ring versatile for various sealing applications, balancing flexibility and durability. Compared to softer grades, it provides ample resistance against extrusion in high-pressure environments and maintains integrity over time. This balance makes it suitable for both static and dynamic sealing applications, allowing it to perform well in pumps, engines, and hydraulic systems.
  • Question: How many Buna-N O-Rings come in a pack?

    Answer: The described product comes in a pack of 5 Buna-N O-Rings. This quantity is typically ideal for users regularly needing replacement seals for various applications. Having multiple O-Rings on hand aids in quickly addressing any potential leaks or maintenance needs, ensuring that your projects continue smoothly without the need for frequent purchasing.
  • Question: Can Buna-N O-Rings be used with water?

    Answer: Yes, Buna-N O-Rings can be used with water, though they excel in environments with hydrocarbons. Their resistance to water makes them suitable for low-pressure water applications. However, it’s important to monitor compatibility with certain chemical additives in water, as they may affect the integrity of the rubber. For most standard applications, such as plumbing or water filtration systems, these O-Rings function effectively.
  • Question: Where can I buy the 405 Buna-N O-Ring in Namibia?

    Answer: You can purchase the 405 Buna-N O-Ring from Ubuy, a reliable online retailer that specializes in a wide range of products, including O-Rings and other industrial supplies. Ubuy provides convenient access and delivery options, ensuring you can find the specific O-Ring pack you need. Simply visit their website and search for the product to find the right options catered to your needs.
  • Question: Are all Buna-N O-Rings compatible with the same fluids?

    Answer: Not all Buna-N O-Rings are compatible with the same fluids, as compatibility can vary based on the specific formulation and additives in the rubber. Buna-N is particularly resistant to oils and fuels, however, chemicals such as strong oxidizers or certain aromatic hydrocarbons may cause deterioration. It is crucial to consult compatibility charts or technical specifications of the O-Rings for the fluids involved in your application to prevent premature failure.

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