Image shown is representative and may differ from the actual product in size, proportions, and color shade
0.472 in
(12.00 mm)
17.638 in
(448.00 mm)
NBR Parker NM071-70 O-Ring, Size: 12X448
Material: NBR Parker NM071-70 O-Ring
Size: Metric 12X448 O-Ring
Part Number: NM071-70-OR-12X448
Color: Black
Detailed Description
NM071-70-OR-12X448 is a Black, 70 Shore A, NBR (Nitrile, Buna-N) O-Ring made from Parker Seal® (Parker). It is a 70 durometer NBR (Nitrile, Buna-N). NM071-70-OR-12X448 is Metric size 12X448 O-Ring also referred to as 12mm (Cross Sectional Diameter (CS)) x 448mm (Inside Diameter (ID)). Material: 70 Durometer NBR Parker NM071-70 O-Ring Size: Metric 12X448, 12mm CS X 448mm ID (0.472" CS X 17.638" ID)
| Technical Specification | Value |
|---|---|
| Compound Number | NM071-70 |
| Brand | Parker Seal® (Parker) |
| Material | NBR (Nitrile, Buna-N) |
| Color | Black |
| Durometer | 70 Shore A Hardness |
| High Temperature | 82 °C / 180 °F |
| Low Temperature | -51 °C / -60 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | Metric |
| Size | 12X448 |
| Cross Section (CS) | 12.00 mm / 0.472 in |
| Inside Diameter (ID) | 448.00 mm / 17.638 in |
Parker’s NM071-70 is a 70 Shore A black nitrile rubber (NBR) compound manufactured to AMS-R-7362 requirements for oil-resistant sealing applications. This material provides good abrasion resistance and low compression set, supporting stable long-term sealing performance in static and light dynamic O-rings and gaskets. With a service temperature range of -60°F to 180°F (-51°C to 82°C), NM071-70 performs reliably in contact with petroleum-based oils and common industrial fluids while maintaining flexibility at lower temperatures. Its balanced durometer and cost-effective formulation make it well suited for aerospace-adjacent, industrial, and general machinery sealing needs.
NM071-70 is commonly used where AMS compliance and consistent nitrile performance are required without the added cost of specialty elastomers. It is selected for applications prioritizing oil resistance, durability, and repeatable material properties. Canyon Components offers equivalent NBR materials that match or exceed the performance of Parker NM071-70 for AMS-R-7362 compliant O-rings and gaskets across a wide range of industrial applications.
Common relevant keywords:
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