Image shown is representative and may differ from the actual product in size, proportions, and color shade
0.118 in
(3.00 mm)
10.787 in
(274.00 mm)
NEO Parker C1276-70 O-Ring, Size: 3X274
Material: NEO Parker C1276-70 O-Ring
Size: Metric 3X274 O-Ring
Part Number: C1276-70-OR-3X274
Parker Seal® (Parker)
C1276-70
Neoprene® (Chloroprene)
70
Shore A
Low Compression Set
Color: Black
Detailed Description
C1276-70-OR-3X274 is a Black, 70 Shore A, Neoprene® (Chloroprene) O-Ring made from Parker Seal® (Parker). It is a 70 durometer Neoprene® (Chloroprene). Parker Seal® (Parker) C1276-70 is manufactured with the following features & specifications: Low Compression Set, General Purpose Material. C1276-70-OR-3X274 is Metric size 3X274 O-Ring also referred to as 3mm (Cross Sectional Diameter (CS)) x 274mm (Inside Diameter (ID)). Material: 70 Durometer NEO Parker C1276-70 O-Ring Size: Metric 3X274, 3mm CS X 274mm ID (0.118" CS X 10.787" ID)
| Technical Specification | Value |
|---|---|
| Compound Number | C1276-70 |
| Brand | Parker Seal® (Parker) |
| Material | Neoprene® (Chloroprene) |
| Color | Black |
| Durometer | 70 Shore A Hardness |
| High Temperature | 121 °C / 250 °F |
| Low Temperature | -37 °C / -35 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | Metric |
| Size | 3X274 |
| Cross Section (CS) | 3.00 mm / 0.118 in |
| Inside Diameter (ID) | 274.00 mm / 10.787 in |
Parker’s C1276-70 is a 70 Shore A black Neoprene (Chloroprene, CR) compound developed to provide broader refrigerant and lubricant compatibility than traditional neoprene formulations. With a service temperature range of -35°F to 250°F, it delivers reliable sealing performance in contact with carbon dioxide, ammonia, common refrigerants, silicone oils and greases, and water or water-based fluids at lower temperatures. This compound offers improved thermal flexibility and environmental durability, making it well suited for refrigeration, HVAC, and general industrial sealing applications. Its balanced mechanical properties support consistent performance in both static and moderate dynamic sealing conditions.
C1276-70 is not recommended for aromatic hydrocarbons, chlorinated hydrocarbons, or polar solvents such as ketones, esters, ethers, and acetones. It is commonly selected where refrigerant compatibility and wider operating temperature capability are required without sacrificing ozone, weathering, and aging resistance. Canyon Components offers equivalent chloroprene materials that match or exceed the performance of Parker C1276-70 for refrigerant, ammonia, and low-temperature sealing applications.
Common relevant keywords:
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