O-Ring Kits
All CTP O-Ring Kits come in special protective suitcases, containing the most popular ring sizes.
Viton O-Rings have higher temperature resistance than regular O-Rings. CTPSN75 contains Nitrile 75 Hardness, substantially improving the lifetime of the component. CTP O-Rings can be use in any industrial application from automotive to heavy equipment.
For more information about the differences between O-Rings, please look at the reference chart on the back of the page.
Each Kit contains 223 O-Rings / 54 different sizes
Nitrile
CTP0057
Black Compound
Best for general hydraulic & petroleum-based applications
- Excellent resistance to petroleum oils, fuels & hydraulic fluids
- Good mechanical properties & wear resistance
- Operating temperature range: -40°C to +120°C
- Most widely used compound for general-purpose sealing
SILICONE
CTP0157
- Wide temperature range:
-60°C to +200°C - Excellent resistance to heat, ozone, UV & weathering
- Superior flexibility at low temperatures
NOTE: Not recommended for petroleum-based fluids or dynamic sealing applications.
VITON
CTP0257
Best for chemical & fuel system applications
Wide temperature range up to +200°C
Excellent resistance to fuels, oils, hydraulic fluids & solvents
Outstanding broad-spectrum chemical resistance
Ideal for demanding fluid sealing environments
Suitcase Style O-Ring Kits
| wdt_ID | Picture | Part No. | Material | Description |
|---|---|---|---|---|
| 1 | ![]() |
CTPSN75 | Nitrile O-Ring | 30 Sizes / 381 Pieces |
| 3 | ![]() |
CTPMN70 | Nitrile 70 O-Ring | 30 Sizes / 440 Pieces |
| 5 | ![]() |
CTP0257 | Vitron O-Ring | 54 Sizes / 223 Pieces |
| 7 | ![]() |
CTP0157 | Silicone O-Ring | 54 Sizes / 223 Pieces |
| 9 | ![]() |
CTP0057 | Nitrile 75 O-Ring | 54 Sizes / 223 Pieces |
| 11 | ![]() |
4C8253 | Silicone 70 O-Ring | 32 Sizes / 149 Pieces |
| 13 | ![]() |
2701535 | Nitrile 90 O-Ring | 9 Sizes / 80 Pieces |
| 15 | ![]() |
4C4782 | Nitrile 90 O-Ring | 32 Sizes / 580 Pieces |
| 17 | ![]() |
9S3135 | Nitrile 90 O-Ring | 6 Sizes / 60 Pieces |
| 18 | ![]() |
6101950 | FKM 90A (Fluorocarbon / Viton) | 8 Sizes / 120 Pieces |
Symbol & Performance Reference Table
| wdt_ID | Symbol | Material and Trading Name | Temperature Resistance (in working period & measurement in Celcius) | Resistance to: | Attacked by: |
|---|---|---|---|---|---|
| 1 | EPDM | E.P. (Ethylene Pro- pylene) | -55~+150 | – Water – Steam – Break Fluids – Alcohol | – Mineral Oil – Solvents – Aromatic Hydrocarbons |
| 2 | NBR | Nitrile (NBR) | -40~+120 | – Sylicone Oils and greases – Water – Hydraulic fluids – Chemicals | – Ozone – Ketones – Phosphate ester – Hydraulic Fluids – Stron Acids |
| 3 | HNBR | Hydrogenated Nitrile Rubber | -40~+125 | Similar to NBR but with improved chemical resistance and higher temperature. Mostly use in Automotive and Oil applications | Similar to NBR |
| 4 | CR | Neoprene® / Chloroprene | -40~+120 | – Oxygen – Ozone – UV light – Oils | – Hydrocarbons (aromatic, chlorinated, nitro) – Ketones – Esters – Strong oxidizing acids |
| 5 | ACR | Acrylic | 0~+150 | – Automatic transmission fluid – Hot oils – Ozone – Fats | – Alcohol – Water – Alkelis – Brake fluids – Glycols |
| 6 | URE | Urethane | -55~+80 | – Oxygen – Ozone – Fuel – Oils | – Ketones – Acids – Esters – Hydrocartons |
| 7 | SIL | Silicone | -55~+250 | – Oxygen – Ozone – UV light – Oxidizing chemicals | – Oils – Ketones – Concentrated acids – Water |
| 8 | FKM | Fuorocarbon / Viton® | -18~+200 | – Fuels and Oils – Hydraulic Fluids – Solvents – Oxidative Environments | – Ammonia – Strong Caustic – Certain Polar Solvents |
* Other part no. not included in the list are available. Please contact your sales representative if you have any questions. Part Numbers are used for reference purposes only. Komatsu® is the registered trademark of Komatsu Ltd. John Deere® is the registered trademark of John Deere Company.









