No, the individual applicant, gun trust applicant or legal entity applicant is not required to engrave their information on the SBR/SBS if the SBR/SBS is already made and being transferred using the ATF Form 4 information.
The ATF doesn't require box 13 to be filled out if you are applying for a tax stamp for a ATF Form 4 silencer. If you are applying for a tax stamp for a ATF Form 4 silencer you still can answer this question, but isn't required by the ATF.
Box 4e of the ATF Form 1, ATF Form 4, and the ATF Form 5 will ask what the barrel length of the silencer is. Because the silencer doesn't actually have a barrel length the value that you will use for Box 4e is simply "N/A."
UPDATE: September, 2019 the ATF has published a revised the ATF 5320.4, ATF 5320.1, and the ATF 5320.5 for NFA Firearm applications. The revised and updated ATF Form 1, ATF Form 4, and ATF Form 5 paperwork clearly states that, "Previous Editions Are Obsolete". This means if you submit an ATF Form 1, ATF Form 4, or an ATF Form 5 using a previous version, there is a high chance that your application will be automatically denied. This means you would then need to resubmit the correct paperwork for your application to be processed.
The transferee questions that are located on the ATF 5320.1 Form 1, ATF 5320.4 Form 4 and the ATF 5320.5 Form 5 paperwork are only required to be filled out on the actual form if you are applying as an individual.
