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This O-ring 37.82x1.78 - NBR - Nitrile - 70 Shore A - Black - FDA / NSF61 - ORS171975 offers excellent resistance to mineral oils, greases, hydraulic fluids, and fuels, making it suitable for various industrial applications.
Manufactured from NBR (nitrile butadiene rubber), also known as Nitrile rubber, with a hardness of 70 Shore A, this NBR O-ring, with an inner diameter (ID) of 37,82mm and a cross-section (CS) of 1,78mm, provides excellent resistance to oils, greases, and fuels. This makes the material ideal for use in the general, hydraulic, and pneumatic industries.
✅ Excellent resistance to oils, greases, and mineral oils
✅ Temperature resistant from -30°C to +135°C
✅ Resistant to aliphatic hydrocarbons and hydraulic oils H, H-L, H-LP
✅ Wear-resistant and durable – longer lifespan and reduced maintenance
✅ Good mechanical properties – maintains flexibility under pressure
This O-ring 37,82x1,78 NBR 70 is ideal for applications in the general, hydraulic, and pneumatic industries. It is commonly used in pumps, compressors, hydraulic cylinders and pumps, pneumatic cylinders, and air pressure regulators due to its excellent resistance to oils and greases.
You can easily order this O-ring 37.82x1.78 - NBR - Nitrile - 70 Shore A - Black - FDA / NSF61 - ORS171975 online from our webshop O-ring-stocks.eu, the Global O-ring Webshop
This NBR - Nitrile O-Ring has a diameter of 37.82x1.78 mm and is Black in color. The hardness of this O-ring 37.82x1.78 - NBR - Nitrile - FDA - NSF 61 - 70 Shore A - Black - ORS171975 is 70. Alternative names for the compound are Nitrile Rubber - NBR, and it is commonly produced by Perbunan® | Krynac® | Nipol® | Europrene N® | Breon® | Chemigum® | Nysyn® | Kalar®. The O-Ring is typically used in and has an operating temperature range from -30 ºC to 100 ºC. O-Rings 1297252 are referred to as 171975 and have a DIN 3771 size of 37.82x1.78. This item is equivalent to and has an FDA - NSF 61 approval. The chemical name of this O-Ring is Acrylonitril-Butadiën-Copolymeer / Buna-N.
| Article number | 171975 |
| General Specifications | |
| Seal type | O-ring |
| ID (Inner diameter) | 37.82 mm |
| CS (Cross Section) | 1.78 mm |
| Dimensions | 37.82x1.78 |
| Material | NBR - Nitrile |
| Approval | FDA - NSF 61 |
| Hardness | 70 |
| Color | Black |
| Compound Number | 107019011 |
| O-ring Code | 029 |
| Alternative Sizes | |
| AS568 Size Chart | AS568 029 |
| BS1806 Size Chart | BS1806 029 |
| DIN 3771 Size Chart | 37.82x1.78 |
| ISO 3601 Size Chart | 37.82x1.78 |
| SMS 1586 Size chart | 37.82 x 1.78 |
| Size in text | thirty-seven point eighty-two millimeters by one point seventy-eight millimeters |
| Technical Specifications | |
| Temperature Max | 100 ºC |
| Temperature Min | -30 ºC |
| Food Contact & Sanitary Certifications | |
| FDA 21 CFR 177.2600 | ✔ |
| Drinking Water & Potable Water Certifications | |
| NSF 61 | ✔ |
| Other Specifications | |
| Alternative names | Nitrile Rubber - NBR |
| Chemical Name | Acrylonitril-Butadiën-Copolymeer / Buna-N |
| Description 2 | O-ring NBR - Nitrile 37.82x1.78 |
| Product name | O-ring 37.82x1.78 Nitrile NBR |
| Trade names | Perbunan® | Krynac® | Nipol® | Europrene N® | Breon® | Chemigum® | Nysyn® | Kalar® |
| Also found under | |
| NBR - Nitrile O-rings | O-rings | |
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