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$20.99
sourcing map 2Pcs AS-278 Nitrile Rubber O-Rings, 12" ID, 12-1/4" OD, 1/8" Width Round Seal Rings Gasket for Automotive Machine Faucet Seal Repair Plumbing Compressor, 70 Durometer, Black — image 1
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sourcing map 2Pcs AS-278 Nitrile Rubber O-Rings, 12" ID, 12-1/4" OD, 1/8" Width Round Seal Rings Gasket for Automotive Machine Faucet Seal Repair Plumbing Compressor, 70 Durometer, Black

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About this item
  • Specifications: Material: Nitrile Rubber; Durometer: 70; Color: Black; O-Ring Nominal Size:304.39x311.15mm/12" x 12-1/4"(ID*OD); O-Ring Nominal Width: 1/8"; Operating Temperature Range: -20°C to 80°C (-4°F to 176°F); Packing List: 2Pcs x AS-278 Nitrile Rubber O-Rings
  • Reliable Material: These O-rings are made of highly elastic nitrile rubber, offering excellent abrasion resistance and resistance to oil, acids, and mildly corrosive media. They maintain flexibility while ensuring a tight seal and will not deform or crack even with prolonged use.
  • Stable Performance: The uniform circular cross-section design ensures even pressure distribution, and a hardness of 70 contributes to stable sealing performance under moderate pressure. Their operating temperature range of -20°C to 80°C (-4°F to 176°F) makes them suitable for both cold and hot environments, ensuring reliable operation under various conditions.
  • Easy Installation: Before installing the O-ring, ensure the mounting surface is clean and free of debris. Gently insert the O-ring into the groove, avoiding twisting or excessive stretching. After installation, double-check that the sealing surfaces are fully fitted to ensure a strong and durable seal.
  • Versatile Applications: These nitrile rubber O-rings are essential circular seals for a wide range of sealing applications. Widely used in lighter repair, flashlight lenses, outdoor lighting fixtures, underwater light lens gaskets, faucet seal repair, and pneumatic or gas machinery, piping systems, meter housings, and coolant/air conditioning piping and compressor systems. Provides reliable seals for piping, industrial equipment, automotive systems, and low-pressure hydraulic systems.
Product description

Description: Reliable Material: These O-rings are made of highly elastic nitrile rubber, offering excellent abrasion resistance and resistance to oil, acids, and mildly corrosive media. They maintain flexibility while ensuring a tight seal and will not deform or crack even with prolonged use. Stable Performance:The uniform circular cross-section design ensures even pressure distribution, and a hardness of 70 contributes to stable sealing performance under moderate pressure. Their operating temperature range of -20°C to 80°C (-4°F to 176°F) makes them suitable for both cold and hot environments, ensuring reliable operation under various conditions. Easy Installation: Before installing the O-ring, ensure the mounting surface is clean and free of debris. Gently insert the O-ring into the groove, avoiding twisting or excessive stretching. After installation, double-check that the sealing surfaces are fully fitted to ensure a strong and durable seal. Versatile Applications: These nitrile rubber O-rings are essential circular seals for a wide range of sealing applications. Widely used in lighter repair, flashlight lenses, outdoor lighting fixtures, underwater light lens gaskets, faucet seal repair, and pneumatic or gas machinery, piping systems, meter housings, and coolant/air conditioning piping and compressor systems. Provides reliable seals for piping, industrial equipment, automotive systems, and low-pressure hydraulic systems. Specifications: Material: Nitrile Rubber Durometer: 70 Color: Black O-Ring Nominal Size: 304.39x311.15mm/12" x 12-1/4" (ID*OD) O-Ring Nominal Width: 1/8" Operating Temperature Range: -20°C to 80°C (-4°F to 176°F) Packing List: 2Pcs x AS-278 Nitrile Rubber O-Rings

Product details
Brand
sourcing map
Manufacturer
sourcing map
Size
12" ID 12-1/4" OD 1/8" Width
Model number
2
Part number
a26050300ux0202

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10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
★★★★★
Excellent
4.5 average rating
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S
Sigalit
🇮🇱 · January 2026
★★★★★

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇦🇺 · November 2025
★★★★★

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 1–2 of 10 reviews

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