Buna-N O-Rings 50 Duro Black Standard

BN500100-469

AS568-469 Buna-N 50 Duro Black O-Ring

AS568-469 Buna-N 50 Duro Black O-Ring

Buna-N

Buna-N (Nitrile) is a synthetic rubber copolymer of acrylonitrile (ACN) and butadiene. It is one of the most commonly used elastomers due to its resistance to oils, fuels, and other chemicals, as well as its high mechanical strength. Nitrile rubber offers excellent wear resistance and good tensile strength.

Buna-N Recommended Uses

  • Seals and gaskets
  • Fuel systems
  • Hydraulic systems
  • Oil and gas industry
  • Automotive applications
  • General-purpose applications

Buna-N Not Recommended

  • brake fluid
  • ozone
  • UV exposure
  • phosphate esters
  • chlorinated hydrocarbons
  • aromatic hydrocarbons
  • ketones
  • strong acids
  • atmospheric aging

Buna-N Limitations

  • Not suitable for ozone, sunlight, or weathering exposure
  • Limited performance in high-temperature environments
  • Not ideal for strong acids and alkalis
  • Not recommended for applications requiring low compression set

Buna-N Usable Temperature Range

-40°C to 120°C

Buna-N also known as:

Buna-N, Nitrile, NBR, Nitrile Butadiene Rubber

ItemPrice
Pack(1)
$50.30
QuantityDiscountPrice
1+
$50.30
3+10% Off
$45.25
8+20% Off
$40.25
15+25% Off
$37.71
Select Pack Size
In Stock
Pack(1)
Min Qty : 1
AS568-469 Buna-N 50 Duro Black O-Ring
$37.71 - $50.30

Product Information

Part Number

BN500100-469

Material

Buna-N

Color

Black

Durometer

50

Dash Number

469

Fractional

ID 20

OD 20-1/2

CS 1/4

Metric (MM)

ID 506.86 ± 2.41

CS 6.99 ± 0.15

OD 520.840

Actual (Inch)

ID 19.955 ± 0.095

CS 0.275 ± 0.006

OD 20.505

Shipping & Returns

Delivery

Orders are dispatched via best shipping method

Returns And Exchanges

Products not meeting general rubber standards or supplied in error are fully refundable within 30 days with an authorized Return Merchandise Authorization (RMA). Returns without an RMA will incur return shipping costs if the claim is invalid.