Suitcase Style 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.

Picture Part No. Material Description
CTPSN75 Nitrile O-Ring 30 Sizes /
381 Pieces
CTPMN70 Nitrile 70 O-Ring 30 Sizes /
440 Pieces
CTP0257 Vitron O-Ring 54 Sizes /
223 Pieces
CTP0157 Silicone O-Ring 54 Sizes /
223 Pieces
CTP0057 Nitrile 75 O-Ring 54 Sizes /
223 Pieces
Picture Part No. Material Description
4C8253 Silicone 70 O-Ring 32 Sizes /
149 Pieces
4C4784 Nitrile 90 O-Ring 9 Sizes /
80 Pieces
4C4782 Nitrile 90 O-Ring 32 Sizes /
580 Pieces
9S3135 Nitrile 90 O-Ring 6 Sizes /
60 Pieces
Symbol Material and Trading Name Temperature    Resistance (in working period & measurement in Celcius) Resistance to: Attacked by:
EPDM E.P.
(Ethylene Pro- pylene)		 -55~+150 – Water
– Steam
– Break Fluids
– Alcohol		 – Mineral Oil
– Solvents
– Aromatic Hydrocarbons
NBR Nitrile (NBR) -40~+120 – Sylicone Oils and greases
– Water
– Hydraulic fluids
– Chemicals		 – Ozone
– Ketones
– Phosphate ester
– Hydraulic Fluids
– Stron Acids
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
CR Neoprene® / Chloroprene -40~+120 – Oxygen
– Ozone
– UV light
– Oils		 – Hydrocarbons (aromatic, chlorinated, nitro)
– Ketones
– Esters
– Strong oxidizing acids
ACR Acrylic 0~+150 – Automatic transmission fluid
– Hot oils
– Ozone
– Fats		 – Alcohol
– Water
– Alkelis
– Brake fluids
– Glycols
URE Urethane -55~+80 – Oxygen
– Ozone
– Fuel
– Oils		 – Ketones
– Acids
– Esters
– Hydrocartons
SIL Silicone -55~+250 – Oxygen
– Ozone
– UV light
– Oxidizing chemicals		 – Oils
– Ketones
– Concentrated acids
– Water
FKM Fuorocarbon / Viton® -18~+200 – Fuels and Oils
– Hydraulic Fluids
– Solvents
– Oxidative Environments		 – Ammonia
– Strong Caustic
– Certain Polar Solvents