The Series BS from Visual Communications Company (VCC) has gone obsolete. The replacement for this series is the CS series.
Here are the datasheet for the CS series
http://static.vcclite.com/files/CS_Datasheet.pdf
The main difference in the two series’ is the finish on the parts. Otherwise these parts are very similar.
Example:
BS1-2702-0000-I-6 would be replaced by CS1-2702-0000-I