Please help me date my US military trousers

[handymike]

I have 2 pairs of vintage Sateen OD-107 utility trousers which I love. They both fit very differently though. One pair is baggy with 10" hems, and the other less so with 8" hems. Can anyone help me figure out the time period they're from?
Here is a shot of the tag in the slimmer pair. Thanks so much!

 

[3fingers]

I don't know enough about the tag nomenclature to identify the age/version of these, but they were used from Korean War period into the late 1980's. A lot of the surplus ones online are Vietnam era.

 

[AbbaDatDeHat]

Pics of the trousers?

 

[Dm101]

You can look up the NSN number listed on the tag. It's the 9 to 13 digit number on there.
You can look it up here...

https://www.NSNCENTER.COM

Sent from my LG-M210 using Tapatalk

 

[Dm101]

Closest I could get for info was this page...

https://www.nsncenter.com/FSC/8405

 

[Boyo]

I know when dating Military jackets ( G-1) its the number after DSA-100 so in this case these are from 1977

**That's my guess anyway..