How to determing the default volume sizes of Bags(sacks), and default bag sizes for mailings using MailStream Plus

Products affected:  MailStream Plus
Product Feature: Container sizes

Operating System: All Platforms
MailStream Plus (MSP) default bag sizes:
Container Type                     Volume(cubic in.)
--------- ------                   ------
1         #1 Bag                   07319
2         #2 Bag                   05136 (The USPS refers to this sack size as 01V or 1VM)
3         #3 Bag  (canvas)         02160
7         #3 Bag  (polypropylene)  03535

MSP default for what bags are used for what types of mailings:
Default Bags used for types of mailings:
2 Periodicals mail Flats
3 First-Class parcels; All Standard Mail except Letters; All Package Services.
UPDATED:  April 19, 2017