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
Would you stake your life, right now, on the condition of your equipment?
NEWS | Nov. 13, 2020

UH-60M: There's a New Shaft in Town!

Soldier performing hoist operations on MEDEVAC.
Photo by Scott C Childress
This article initially appeared in PS 786 (May 18), page 40.


If you need to order a new main shaft extension assembly for the UH-60M Black Hawk, get it with NSN 1615-01-634-0170 (PN 70351-08186-047).

Though the shaft extension is the same one used on the A/L model, the life limit is different for each aircraft. The A/L model shaft extension has a life limit of 14,000 hours. The M model has a life limit of 4,900 hours.

Be advised that once a shaft extension is used on an M model aircraft, it can no longer be used on an A/L model aircraft. This change is effective now! [as of May 2018, when this article initially appeared.] 

For the A/L model Black Hawk, the shaft extension remains NSN 1615-01-074-5151 (PN 70351-08186-043). If you have an A/L shaft extension on back order and it’s intended for the M model aircraft, contact the item manager so the requirement can be changed to the M model NSN.
Got Questions? Contact Riley Jacobs by email:
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