O-Ring Kit, AS568 Buna-N 70A Durometer, 382 Pieces, 30 Sizes

$39.99 $48.50

SKU: O-KIT-568-N70-30

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Buna-N O-Ring Kit, 70A Durometer, 382 Pieces, 30 Sizes

AS568 Standard O-Ring Sizes Including:

20 pieces each: 006, 007, 008, 009, 010, 011, 012
13 pieces each: 110, 111, 112, 113, 114, 115,116
10 pieces each: 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222 012
7 pieces each: 325, 326, 327

Material: Buna-N (NBR) is one of the most commonly used general-purpose O-Ring elastomer compounds because of its relatively low cost, good physical properties and chemical resistance including many basic oils, fuels, and lubricants. The actual name is Acrylonitrile-Butadiene and can be referred to as Buna, Nitrile or NBR.  The standard durometer (hardness) is 70 duro or 90 duro and black in color. The operating temperature range is generally -30° to 250°F*. Buna is not recommended for automotive or aircraft glycol-based brake fluid, halogenated hydrocarbons (carbon tetrachloride, trichloroethylene), ketones (MEK, acetone), nitro hydrocarbons (nitrobenzene, aniline), ozone, phosphate ester-based hydraulic fluids (Skydrol, Fyrquel, Pydraul), strong acids, sunlight, UV or weathering.

Hardness: 70 Durometer Shore A

Color: Black

Operating temperature: -30° to +250° F*

*Operating temperature ranges are approximate and apply to medium hardness (~ 70 durometer Shore A) compounds. Harder or softer compounds will have different temperature ranges.