The Red Stem O Ring (BS1806-003 LSR Silicone 70 Shore) is a type of O-ring seal made from liquid silicone rubber (LSR) with a hardness of 70 Shore.
An O-ring is a mechanical gasket in the shape of a torus; it is a loop of elastomer with a circular cross-section, designed to be seated in a groove and compressed during assembly between two or more parts, creating a seal at the interface. O-rings are commonly used in a wide variety of applications, including mechanical, electrical, and fluid power systems.
LSR is a type of silicone rubber that is manufactured using a liquid injection molding process. It offers a number of advantages over traditional silicone rubber, including improved precision, consistency, and durability. LSR also has excellent resistance to high and low temperatures, UV radiation, and ozone.
The 70 Shore rating indicates the hardness of the O-ring. Shore hardness is a measure of the resistance of a material to indentation, with higher numbers indicating a harder material. A 70 Shore O-ring is considered to be a medium-hard material, which is suitable for a wide range of applications.
The BS1806-003 is a standard size for O-ring and it is commonly used in many industries, such as automotive, aerospace, medical, and industrial.
It is important to note that the Red color of the O-ring is probably used for identification and does not have any special properties.