There is none! There is a few rules on naming these files though
- Drawing of a part or assembly shall have the same name as the part number or assembly
Examples:
- "MR22-P0000C-BS.SLDPRT" → "MR22-P0000C-BS.SLDDRW"
- "MR22-A0000-BS.SLDPRT" → "MR22-A0000-BS.SLDDRW"