Mr O-Ring
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345 Buna-N O-Ring, 70A Durometer, Black, 4 ID, 4-3/8 OD, 3/16 Width (Pack of 25)
345 Buna-N O-Ring, 70A Durometer, Black, 4 ID, 4-3/8 OD, 3/16 Width (Pack of 25)
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345 Buna-N O-Ring, 70A Durometer, Black, 4 ID, 4-3/8 OD, 3/16 Width (Pack of 25)
345 Buna-N O-Ring, 70A Durometer, Black, 4 ID, 4-3/8 OD, 3/16 Width (Pack of 25)
Our Buna-nitrile O-ring offers high tensile strength and a temperature range of -30°F to 250°F for unbeatable sealing performance.
345 Buna-N O-Ring, 70A Durometer, Black, 4" ID, 4-3/8" OD, 3/16" Width (Pack of 25)
Item #: 148274653

345 Buna-N O-Ring, 70A Durometer, Black, 4" ID, 4-3/8" OD, 3/16" Width (Pack of 25)

86% of respondents would recommend this to a friend

Item #: 148274653

XCD 81

Price Details

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*All items will import from US

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Order now and get it around Thursday, October 01
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Our Buna-nitrile O-ring offers high tensile strength and a temperature range of -30°F to 250°F for unbeatable sealing performance.
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What Stands Out

Durable Material
Manufactured from Buna-N, these O-rings provide excellent resistance to oil, chemicals, and temperature extremes, ensuring long-lasting performance in various applications.
Perfect Sizing
With an inner diameter of 4" and outer diameter of 4-3/8", these precise dimensions make them ideal for numerous sealing applications, minimizing leaks and enhancing efficiency.
Value Pack
Available in a convenient pack of 25, this product offers great value for frequent users, ensuring you always have spares on hand for quick replacements and maintenance.

Product Details

Shop 345 Buna-N O-Ring, 70A Durometer, Black, 4 ID, 4-3/8 OD, 3/16 Width (Pack of 25) online at a best price in Montserrat. B000FN0XUE
Brand NameMr O-Ring
ManufacturerMr O-Ring
Unit Count25 Count
Set NameSet of 25
Number of Items25
Number of Pieces25
Part NumberAZ-N70345/25
Model345
Material TypeNitrile Rubber
ColorBlack
Nominal Inside Diameter3.98 inches (10.1 cm)
Item Diameter4.4 inches (11.2 cm)
Nominal Outside Diameter4-3/8 inches (1112.5 cm)
MaterialNitrile Rubber
BrandMr O-Ring
Item Weight1 lbs (450 grams)

Who Should Buy?

Suitable For
  • Manufacturing Facilities

    Ideal for production lines requiring reliable sealing solutions in hydraulic and pneumatic applications, ensuring minimal leakage.

  • Automotive Mechanics

    Excellent choice for mechanics looking to replace seals in engines, brake systems, and fuel systems with high durability.

  • DIY Enthusiasts

    Great for hobbyists creating custom projects that require robust sealing solutions for plumbing, automotive, or machinery repairs.

Not Suitable For
  • Extreme Temperatures

    Not suitable for applications involving temperatures above the limits of Buna-N material, leading to deformation or failure.

Product Description

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is the maximum temperature this O-ring can withstand?

    Answer: The O-ring can withstand temperatures up to 250°F (121°C).
  • Question: Is this O-ring suitable for use with oils?

    Answer: Yes, it is designed to be compatible with petroleum, vegetable oil, and various other fluids.
  • Question: Can this O-ring be exposed to sunlight or ozone?

    Answer: No, this Buna-nitrile O-ring should not be used in environments with exposure to ozone, sunlight, or UV light.

Mr O-Ring O-Rings Editorial Review

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Pros

  • High durability and resilience
  • Excellent sealing properties
  • Wide range of applications
  • consistent quality across packs
  • Non-toxic and safe material

Cons

  • Some may find the pack size excessive.

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Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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XCD 81

Order now and get it around Thursday, October 01

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Features & Benefits

  • Made of durable Buna-nitrile for superior sealing.
  • Operates effectively in a wide temperature range from -30°F to 250°F.
  • Features a Shore durometer of 70A for enhanced resistance to indentation.
  • Meets Aerospace Standard AS568A for quality assurance.
  • Ideal for use with various fluids including petroleum and vegetable oil.
  • Perfect for engines, faucets, flanges, and valves.

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