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Auto Parts NBR O Rings Seal Excellent Wear Resistant and Oil Resistant

Auto Parts NBR O Rings Seal Excellent Wear Resistant and Oil Resistant

Auto Parts NBR O Rings Seal Excellent Wear Resistant and Oil Resistant
Auto Parts NBR O Rings Seal Excellent Wear Resistant and Oil Resistant
Auto Parts NBR O Rings Seal Excellent Wear Resistant and Oil Resistant
Product Details:
Place of Origin: Guangdong,China
Brand Name: ORK
Certification: FDA,ROHS,ISO9001,IATF16949
Model Number: AS568 Standard
Payment & Shipping Terms:
Minimum Order Quantity: 100 USD
Price: Negotiable
Packaging Details: PE inside , Carton Outside, Cartons on pallets if necessary
Delivery Time: 7-45 work days
Payment Terms: L/C,Paypal, T/T, Western Union
Supply Ability: 30000000 PCS / Month
Contact Now
Detailed Product Description
Material: NBR Hardness: 70±5 Shore
Colors: Black , Green , Purple , Red , White , Blue Size: AS568 Standard Sizes
Temprature Range: -34 ℃ ~ 100 ℃ Package: PE Bag Inside , Carton Outside
Sample: Free Of Charge
High Light:

nitrile rubber o ring


o rings nbr


Oil Resistant NBR O Ring

Auto Parts NBR O Rings Seal Excellent Wear Resistant and Oil Resistant
Advantage: excellent resistant to oil, second only to TR, ACM and FKM, better than other general rubber. Good heat resistance, good air tightness, abrasion resistance and water resistance, strong cohesive force.
Disadvantage: poor cold resistance and ozone resistance, low strength and bad flexibility, poor acid resistance, bad electrical insulation and polar solvents resistance.
Operating Temperature: about -40°C~+100°C.


RUICHEN SEALING CO.,LTD offers the seal industry's largest inventory of o-rings, which includes every standard AS568 and ISO 3601 size, and the following:

  • Inside Diameter from 0.031 in (0.794 mm) to 26.0 in (66.04cm)
  • Outside Diameter from 0.094 in (2.38 mm) to 26.5 in (67.31cm)
  • Cross Section from 0.031 in (0.794 mm) to 0.250 in (6.35mm)

In addition to standard imperial and metric sizes, ORK also carries a wide variety of non-standard sizes. With over 4,000 different o-ring sizes in-stock, we have exactly what you are looking for and we can assure immediate delivery of any size in large or small quantities.


 Easy to Order, Fastest Delivery


When you are ready to get started, submit an online RFQ to receive a quote from our dedicated sales team within 24 hours. Most likely the size and compound you require is in our inventory of over 300 Million o-rings. You receive immediate shipments with no intermediate delays. Remember: With ORK, you buy direct.


 Standard O-Ring Material Applications


 Nitrile (Buna-N) is the most widely used elastomer due to its excellent resistance to petroleum products, operating temperature range (-40°C to +100°F) and one of the best performance-to-cost values. It's an ideal material for aerospace, automotive, propane and natural gas applications. Special Hydrogenated Nitrile (HNBR) compounds can improve resistance to direct ozone, sunlight, and weather exposure while increasing temperature range.


ASTM D1418 Designation: NBR


ASTM D2000/SAE J200 Type, Class: BF, BG, BK, CH


ORK Compound Designation: BN


Standard Color: Black


Description: Presently the seal industry's most widely used and economical elastomer, Nitrile combines excellent resistance to petroleum-based oils and fuels, silicone greases, hydraulic fluids, water and alcohols, with a good balance of such desirable working properties as low compression set, high tensile strength, and high abrasion resistance.


Key Use(s): Oil resistant applications of all types. Low temperature military uses. Off-road equipment. Automotive, marine, aircraft fuel systems. Can be compounded for FDA applications.


Temperature Range

Standard Compound: -40°C to +100°C

Hardness (Shore A): 40 to 90.

Features: Comprised of the copolymer butadiene and acrylonitrile, in varying proportions. Compounds can be formulated for service temperature ranging from -40°C to +100°C. Use of Carboxylated Nitrile can have superior abrasion resistance, while still having improved oil resistance.

Limitations: Nitrile compounds are attached by small amounts of Ozone. Phthalate type plasticizers are commonly used in compounding Nitrile Rubber. These plasticizers can migrate out and cause problems with certain plastics. Also, new regulations on certain phthalates have limited their use.



ASTM D2000 M2BG 714 B14 EO14 EF11 EF21 EA14 F17





Hardness shore A




Tensile MPA Min




Elongation % Min








Heat resistant 70h 100℃ Hardness change




Tensile strength%




Elongation Max




Compression Max 22h  at 100℃




NO1 oil resistant




Change in hardness




Change in tensile Max




Change in Elongation




Change in Volume%




Fuel resistant 70 H at 23℃




Hardness change




Tensile change Max 




Elongation change Max




Change in Volume




Water Resistant




Change in Hardness




Change in tensile 




Change in Elongation




Change in Volume




Low Temperature resistant 




3 MIN -40℃

Non brittle



Besides NBR, we can also make o rings by other materials, such as FKM / FPM, Silicone, EPDM, HNBR, SBR, NR, PU and so forth.

Detailed Image:

Auto Parts NBR O Rings Seal Excellent Wear Resistant and Oil Resistant 0

Auto Parts NBR O Rings Seal Excellent Wear Resistant and Oil Resistant 1


1,Are you manufacture or trading company ?
We are manufacture, we have two factories, one located in Shangrao City, Jiangxi Province, one in Dongguan City, Guangdong Province

2,Can I get samples from you ?
Of course, you can. If the samples you need we have in stock, you can get them for free,
only need to pay for the express cost.

3,What's the term of payment ?
Amount < US$2000, 100% paid in advance by paypal or T/T;
Amount >= US$2000, 30% paid in advance, 70% balance before shipment by T/T.

4,Can you produce OEM products ?
Yes, we can produce products by your drawing or samples.

5,What's your MOQ ?
If we have the products in stock , the quantity by your requirement, If we don't have them in stock:
NBR, SIL, SBR, EPDM, NR: 100 US$; PU, HNBR, FKM: 150 US$

Contact Details
Dongguan Ruichen Sealing Co., Ltd.

Contact Person: Shadow Zhang

Tel: +8618024335328

Send your inquiry directly to us
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