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O-Rings
  1. Home
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  3. Hydraulics, Pneumatics & Plumbing
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  5. O-Rings
  6. Mr O-Ring M5.7x154.3…
Mr O-Ring

Mr O-Ring M5.7x154.3 Buna-N O-Ring 70A Durometer | Wide Temperature Range Seal

Mr O-Ring M5.7x154.3 Buna-N O-Ring 70A Durometer | Wide Temperature Range Seal - main product image
All-inclusive price — duties & taxes paid, no customs charges at delivery
₹41,480₹66,410

You save ₹24,930 (38%)

Qty
Mr O-Ring M5.7x154.3 Buna-N O-Ring 70A Durometer | Wide Temperature Range Seal — Black
Black
₹3,020
₹4,210
In Stock
Mr O-Ring M5.7x154.3 Buna-N O-Ring 70A Durometer | Wide Temperature Range Seal — Black
Black
₹41,480
₹66,410
In Stock
Mr O-Ring M5.7x154.3 Buna-N O-Ring 70A Durometer | Wide Temperature Range Seal — Black
Black
₹2,950
₹4,000
In Stock
All sizes are US sizes. See the US to India size chart

Estimated doorstep delivery by 24 Nov - 26 Nov from USA

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Sourced from US retailers
Sourced from US retailers
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Factory-Sealed
All Duties Included
All Duties Included
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GST Invoice Issued
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14-Day Smile Guarantee
14-Day Smile Guarantee

Support Your Sealing Needs with Authentic USA Quality

About this item

Mr O-Ring Buna-N O-Ring is a high-quality sealing component available in India through crowcrowcrow, with a 154.3 mm inside diameter and 165.7 mm outside diameter, designed for hydraulic, pneumatic, and plumbing applications. Made of Buna-nitrile, it offers excellent resistance to petroleum, alcohol, acids, and aliphatic hydrocarbons, ensuring durability in demanding environments.

Its 70A durometer hardness provides a balance of flexibility and strength, suitable for a wide temperature range from -30°F (-34°C) to 250°F (121°C). Imported from the USA, this O-ring supports high tensile strength and tear resistance, making it ideal for industrial use.

Order now for fast delivery in 11-13 days. Supports your sealing needs with quality and durability, at a competitive price, with all duties included and a 14-day Smile Guarantee.

Key Features

  • Made of Buna-nitrile for use with a variety of fluids and hydrocarbons
  • Durometer (hardness) of 70A
  • Round cross-section provides a seal between cylindrical overlapping surfaces
  • For use across a wide temperature range from -40 degrees F (-40 degrees C) to 212 degrees F (100 degrees C)

Why choose this product

Formulated for Durability and Resistance

Made from Buna-nitrile, this O-ring combines high tensile strength with excellent resistance to abrasion, tear, and compression set. Its 70A hardness balances flexibility and durability, verified by industry standards for sealing performance in hydraulic and pneumatic systems.

Ideal for Indian Industrial & Domestic Use

Designed to withstand wide temperature ranges from -30°F to 250°F, it performs reliably in Indian environments with high heat, humidity, and exposure to petroleum-based fluids. Skip if UV exposure or ozone resistance is critical — consider Viton alternatives.

How to use

  • Measure the existing seal — Use a caliper to measure the inside diameter (ID) and cross-section (CS). Confirm size matches 154.3 mm ID and 5.7 mm width for proper fit.
  • Clean the sealing surface — Ensure the groove and mating surfaces are free of debris, oil, and old sealant to ensure optimal sealing performance.
  • Install the O-Ring — Lubricate lightly with compatible fluid, then carefully seat the O-ring into the groove, avoiding twists or damage. Reassemble system and test.

Example scenarios

Typical situations where Mr O-Ring M5.7x154.3 Buna-N O-Ring 70A Durometer | Wide Temperature Range Seal helps — illustrative scenarios, not customer reviews.

1
Scenario 1
Illustrative example
Where it helps

A mechanic in Mumbai needs a durable seal for hydraulic machinery exposed to high heat and petroleum-based fluids.

How this product helps

Uses Mr O-Ring Buna-N O-Ring, which withstands -30°F to 250°F, resisting oil and abrasion, saving ₹ on frequent replacements, arrives in 11-13 days.

Fit, size & material

Care instructions

Recomm. UseSealing in hydraulic, pneumatic, and plumbing systems
Cost per use₹41,480 per piece
Shelf life on arrivalFactory-sealed, check manufacturer's date
Reapplication mathSupports long-term sealing; replace if wear or damage occurs
ContraindicationsAvoid exposure to ozone, UV, sunlight, and weathering
Allergens / irritantsNone specified

How we compare

FeatureMr O-Ring M5.7x154.3Others
Material ResistanceMade of Buna-nitrile with high resistance to petroleum and hydrocarbonsTypically lower resistance, less durable in high heat or chemical exposure
Size & Compatibility154.3 mm ID, 165.7 mm OD, 5.7 mm Width, standard metric sizeVaries by brand, often non-standard sizes requiring conversion
Price & Cost-Per-Unit₹41,480 per piece for bulk pack of 50₹300-₹500 per piece for smaller packs, higher per-unit cost
Temperature Range-30°F to 250°F (-34°C to 121°C)Typically limited to lower temperature ranges, less suited for high-heat environments

Product details

SKUgqk7248
Size154.3 mm ID, 165.7 mm OD, 5.7 mm Width
MaterialNitrile Rubber
ColorBlack
Durometer70A
Country of OriginNot stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners

About Mr O-Ring

Mr O-Ring specializes in high-quality sealing components, trusted globally for durability and chemical resistance in industrial applications.

Compliance & Legal

This is a support product for sealing applications; no medical or safety claims.

Customer Reviews

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FAQ, See What Others Asked

What is the difference between Buna-N and Viton O-Rings?
Buna-N O-Rings are cost-effective, suitable for petroleum and hydrocarbons, with a temperature range up to 250°F. Viton handles higher temperatures and aggressive chemicals, ideal for demanding environments.
How do I select the right O-Ring size?
Measure the inside diameter (ID) and cross-section (CS) of your existing seal or groove. Confirm whether the size follows metric mm or the imperial AS568 dash-number standard, then choose accordingly.
Can I use this O-Ring in Indian plumbing systems?
Yes, with the correct size and material compatibility, this Buna-N O-Ring performs well in hydraulic and pneumatic applications common in Indian industries and homes.
Is this product suitable for high-temperature applications?
Supports up to 250°F (121°C), making it suitable for most industrial and domestic sealing needs in India, but avoid UV or ozone exposure for longevity.
How long will this O-Ring last in my system?
With proper installation and compatible fluids, it can last several years. Replace if signs of wear, cracking, or damage appear, especially in high-stress environments.
How to buy an authentic Buna-N O-Ring in India?
Order from authorized US retailers via crowcrowcrow, factory-sealed, with all duties and GST included. Delivered in 11-13 days with a 14-day Smile Guarantee.

Frequently bought together

Mr O-Ring M5.7x154.3 Buna-N O-Ring 70A Durometer | Wide Temperature Range Seal

This item:

Mr O-Ring M5.7x154.3 Buna-N O-Ring 70A Durometer | Wide Temperature Range Seal

₹41,480

Mr O-Ring M5.7x154.3 Buna-N O-Ring 70A Durometer | Wide Temperature Range Seal

This item

Mr O-Ring M5.7x154.3 Buna-N O-Ring 70A Durometer | Wide Temperature Range Seal

₹41,480

Total price:

₹44,540

You save ₹27,420 (38%) Extra

3 items selected

3 items

₹44,540

You save ₹27,420 (38%) Extra

Product Comparison

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Spec
Price
₹41,480
₹66,410
₹1,020
₹1,470
₹2,040
₹4,080
₹3,180
₹3,850
₹1,600
₹2,140
₹2,400
₹3,760
₹9,120
₹13,720
Brand NameMr O-RingMonigteFUSHIPROBUSY-CORNERuxcellRed DevilClorox
SourceUS RetailUS RetailUS RetailUS RetailUS RetailUS RetailUS Retail
Sold ByCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrow
Imported from USA
₹41,480₹66,410

You Save ₹24,930

Estimated doorstep delivery by 24 Nov - 26 Nov from USA
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Tracked from USA · duties included
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Your Order Journey: From Purchase to Doorstep

You Order
Place your order
USA Warehouse dispatch
Packed & shipped
International Air Shipping
Fast transit
Consignment to India Warehouse
Customs cleared
Doorstep delivery
Delivered to you
You Order
Place your order
USA Warehouse dispatch
Packed & shipped
International Air Shipping
Fast transit
Consignment to India Warehouse
Customs cleared
Doorstep delivery
Delivered to you

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vs
₹1,24,440+ (3× the price)
₹41,480 locked, all-in
Hard to get the original US version in India
Original US version, shipped to your door
Extra pay for Import Duties, GST, and forex fees
One price in INR, no customs charges at delivery
4–12 weeks · No tracking
11-13 days · live tracking
Grey market, no guarantee, no protection, no refund
Sourced from US retailers, India-verified, return available
Lost in transit = ₹0 back
Full protection included