Hi Folks:  Recently picked up this lightweight pack with frame and I would like to verify it's Vietnam period pack/frame.  The NSN, DSA stamp is faded/worn.

Looks good fron here.

I "thought" it was but I wanted to check in with the SMEs

Trying to research a “John Landeis” which is written on the strap…but coming up with nothing search Ancestry.com…..it could be my queries 

After looking over the frame carefully, I found "PRENTICE" stamped on the frame

I “think” I found the soldier…served in Korea and Vietnam 

 

https://www.vlm.cem.va.gov/JOHNDLANDEIS/FB1A194

Again after relooking the ruck, I realized that the FSN, DSA info was stamped on the inside of the top cover pocket.  There I found the nomenclature, FSN, DSA Contract#
 

FSN: 8465-782-3248

DSA100-68-C-2177

 

What I originally posted was the reverse "ink leak"

 

Now , I've been able to properly identify the ruck model "P68"

NSN didn't come along until 1978.............FSN-Federal Stock Number vs. NSN- National Stock Number 

Take note of post#7…when I listed “FSN”…not “NSN”

 

As far as the conversion from FSN to NSN, I enlisted in the USAF in June 1972 and I was an Inventory Mgt Specialist until Feb-Mar 1976.  I recall in 1974 while I was at Bitburg AB, Germany, I had the “honor” of updating catalog data by adding “00” in the FSN thus converting them to NSN…so I believe we converted earlier (1974).  In addition to my military, I worked in logistics/supply for DOD Civil Service (US Navy, US Army, and DOD Defense Logistics Agency (DLA)) retiring after 51 years service……so I “kinda know FSN/NSN. :-)