FSIL Parker LM151-50 O-Ring, Size: -015
Material: FSIL Parker LM151-50 O-Ring
Size: AS568 -015 O-Ring
Part Number: LM151-50-OR-015
Color: Blue
Detailed Description
LM151-50-OR-015 is a Blue, 50 Shore A, Fluorosilicone (FVMQ, FSIL) O-Ring made from Parker Seal® (Parker). It is a 75 durometer Fluorosilicone (FVMQ, FSIL). Parker Seal® (Parker) LM151-50 is manufactured with the following features & specifications: General Purpose Material. LM151-50-OR-015 is AS568 size -015 O-Ring also referred to as 1.78mm (Cross Sectional Diameter (CS)) x 14mm (Inside Diameter (ID)).
Material: 50 Durometer FSIL Parker LM151-50 O-Ring
Size: AS568 -015, 1.78mm CS X 14mm ID (0.070" CS X 0.551" ID)
| Technical Specification | Value |
|---|---|
| Compound Number | LM151-50 |
| Brand | Parker Seal® (Parker) |
| Material | Fluorosilicone (FVMQ, FSIL) |
| Color | Blue |
| Durometer | 50 Shore A Hardness |
| High Temperature | 177 °C / 351 °F |
| Low Temperature | -73 °C / -99 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | AS568 |
| Size | -015 |
| Cross Section (CS) | 1.78 mm / 0.070 in |
| Inside Diameter (ID) | 14.00 mm / 0.551 in |
Parker’s LM151-50 is a 50 Shore A blue fluorosilicone (FVMQ) compound designed as a general-purpose sealing material for applications requiring excellent fuel resistance and wide temperature capability. It operates reliably across a service temperature range of approximately -100°F to 350°F, maintaining flexibility at very low temperatures while remaining stable under dry heat conditions. This compound offers strong compatibility with aromatic mineral oils, petroleum oils, jet fuels, low molecular weight aromatic hydrocarbons such as benzene and toluene, and chlorinated solvents. Its lower durometer allows improved conformability and sealing performance under low clamp loads in both static and light dynamic applications.
LM151-50 is commonly used for O-rings and gaskets in aerospace, automotive, and industrial fuel system applications where low-temperature elasticity and fuel compatibility are critical. It is not recommended for phosphate esters, acids, ketones, amines including ammonia, or automotive and aircraft brake fluids. This fluorosilicone grade is often selected as a flexible alternative where higher-durometer FVMQ materials are unnecessary. Canyon Components offers equivalent fluorosilicone materials designed to match the temperature range, fuel resistance, and sealing performance of Parker LM151-50 for general-purpose fuel and solvent sealing applications.
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