Singer Sewing Machine Parts Chart:
Some sewing machines are made for several years using several different model numbers (depending on where the machine was purchased, year of manufacture, country of manufacture, etc...) At times an order for a specific model may be substituted with another manual that offers the same information and content.
Your Sewing Machine or Serger Manual will arrive within 7- 9 working days, many times it will arrive sooner as the most common models ship out on the same day. On the other hand, a hard to find manual will take a minimum of 2 to 3 weeks to arrive since it takes time for the manufacturer to locate your specific manual.
Also note that some manuals may be photocopies and not originals because some manuals are out-of-print.