An official website of the United States government
Here's how you know
A .mil website belongs to an official U.S. Department of Defense organization in the United States.
A lock (lock ) or https:// means you’ve safely connected to the .mil website. Share sensitive information only on official, secure websites.

Home : Articles
Have a Soldier/Warfighter who takes pride and ownership of their assigned equipment? Then nominate them for PS Magazine's "I Own This" recognition program. Click HERE to learn more.
PS Magazine poster image which links to the posters page at
Click on image above to view and
this and other posters
Would you stake your life, right now, on the condition of your equipment?
NEWS | Dec. 12, 2019

SINCGARS: Simply Stumped

Dear Connie,

After searching the PS Magazine archives and reading through SB 11-131-2, Vehicular Radio Sets and Authorized Installations Volume II (SINCGARS, FHMUX, AND EPLRS) (Sep 05), I’m stumped.

I’m looking for the AN/VRC-90F SINCGARS installation kit (IK) for the M983A4, but I was only able to find the NSN for the IK for the M984 and M985 HEMTT.

These are very similar vehicles, so I’m guessing the IK might be the same. Is there a way to confirm that the MK-2204/VRC IK, NSN 5895-01-225-8658, will work for the M983A4 Light Equipment Transporter, as well as other HEMTTs?         
1LT M.E.

Dear Lieutenant,

Glad to help. According to a newer version of SB 11-131-2 (Oct 11), there are three different SINCGARS IKs for the M983A4:
  •  For a digitized M983A4, the single SINCGARS IK is MK-3150/VRC, NSN 5895-01-590-7962.
  •  For a digitized M983A4, the dual SINCGARS IK is MK-3149/VRC, NSN 5895-01-590-7960.
  •  For a non-digitized M983A4, the dual SINCGARS IK is MK-3151/VRC, NSN 5895-01-590-7964.
You’ll find this info and much more in the latest version of SB 11-131-2. Get the pub from our milSuite collection:
Want to get better search results faster? 
Click the link below to access our "how to" guide
After entering a keyword, you must hit or click the Search bar/box below for the function to work.
Simply hitting Return won't yield results.
Note about links to archive articles

If you come across a link to a pre-2014 PS Magazine issue or article that uses LOGSA in the web address (URL), use this link instead:
For issues/articles from 2014 and after, click on the Archive/Index tab in the top menu of this website.

BE ADVISED: With the migration to Army365, emails in older articles may still reflect an address. To update, change the domain to