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The Dichtomatik N8-90-390 is a NBR (Nitrile Butadiene Rubber) 90 Shore A contoured backup ring designed for anti-extrusion protection in high-pressure sealing applications. This backup ring prevents O-ring or U-cup extrusion into the clearance gap, extending seal life in hydraulic and pneumatic systems. Suitable for temperatures from -40°F to +250°F.
MODEL 75172258
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$12.31 Each
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Brand Minimum Order Quantity: 5
Typically Ships in: 1 day
Returnable: See conditions
Cross Section Shape
Contoured
Dash Number
8-390
Durometer
90 Shore A
I.D.
21.006 in
Material
Buna-N
Temperature Rating
-40 to 250 deg F
Thickness
0.076 in
Width
0.183 in
Dichtomatik Dichtomatik N8-90-390
UPC: | UNSPSC: 30181800 | GTIN:
Gaskets & Packing > O-Rings & O-Ring Kits > Backup Rings
DICHTOMATIK Back-Up Ring, 21.006 in Inside Dia, 0.183 in W, 0.076 in Thickness, Contoured Cross Section, Dash Number: 8-390, 90 Shore A Durometer, -40 to 250 deg F, Buna-N
Specs:
| Dash Number | 8-390 |
|---|---|
| Cross Section Shape | Contoured |
| Durometer | 90 Shore A |
| Temperature Rating | -40 to 250 deg F |
| Inside Diameter | 21.006 in |
| Material | Buna-N |
| Thickness | 0.076 in |
| Width | 0.183 in |
Packaging:
SKU: 1460707
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Read moreItem must be unused.
Item must be in it's original package.
Restocking, shipping and handling fees may apply to any return with this manufacturer.
For more information please consult https://www.mrosupply.com/page/returnwarranty-policy/