"The item consists of a cap MS90376-20Y, polarizing keyway. The ETI is an optional accessory and may or may not be present on the device depending on the sub-assembly dash number; specifically, sub-assembly -104 has a cover plate 10104552-101 in place of the ETI, while sensor surveyor assembles 10078752-101 and 10078752-102 are also part of the item. Additionally, the item includes plate identification 435100 and cap dust MS90376-20Y."