Douglas Terminal Crimping Tool

dayboy42 · Post by **dayboy42** » Tue Nov 15, 2016 5:34 am

Would this be the correct terminal crimper to repair my Douglas connectors

It sure looks like the one Wes has pictured. I have to repair a few ends on my lights. ~ Matt

http://www.ebay.com/itm/Buchanan-Milita ... 0431575139

4x4M38 · Post by **4x4M38** » Tue Nov 15, 2016 7:25 am

It's not a Douglas product but appears to have the four jaws that
compress the terminal, and is adjustable for different sized terminals.

Jeez that's steep.
I was patient and found a Douglas on eBay for ten bucks.

Post by **wesk** » Tue Nov 15, 2016 12:01 pm

Actually $45 is not out of line. Astro still makes that crimper and if you check out their current price you'll jump on $45.

https://www.astrotool.com/Product/10692 ... s-ms3191-1

By comparison to used Buchanan crimpers:

https://store.crimptools.com/astro-corp ... djust.html

http://www.iisusa.com/Buchanan-MS3191-1 ... /MS3191-1/

https://www.bmisurplus.com/products/477 ... crimp-tool

and here's a used Astro: http://www.cms-tools.com/10692-ms3191-1 ... crimp-tool

You'll note that the Douglas tool I pictured and the Astro tool i pictured are both in compliance with MIL-Spec- MS-3191-1 just as the Buchanan is.

Make sure you confirm you get the correct positioner for the gauge & type terminal you are crimping. The only place to get that infor is from the Mil spec of the terminal so you know which terminal you have and then go to the owner's guide or spec sheet fror the crimper to determine the correct positioner Mil spec or part number.

RICKG · Post by **RICKG** » Tue Nov 15, 2016 2:59 pm

The $535 each price tag must be the Army Procurement price per thousand
to "Uncle" from a well connected sub-contractor.

keats · Post by **keats** » Tue Nov 15, 2016 3:16 pm

Buchanan C-24 ia great tool for the job and can be found regularly used on eBay and at times for 10-40 dollars. Have used this tool myself for years.

RICKG · Post by **RICKG** » Tue Nov 15, 2016 7:09 pm

Found fotos in my gallery of the one in my kit. H.A Douglas Bronson Mich.

dayboy42 · Post by **dayboy42** » Tue Nov 15, 2016 7:14 pm

Thanks for your help guys! Really nice knowing I'm not alone in this project of mine. ~ Matt

dayboy42 · Post by **dayboy42** » Fri Nov 18, 2016 8:42 pm

I was not able to find anyone selling original Douglas made crimpers

so I started researching other companies that were mentioned. Astro that Wes mentioned peaked my interest. I came accross some interesting information which solves the mystery why their are so many Buchanan crimpers that are exactly like the Astro 10692 crimp tool. Stephen Buchanan held the first indent crimp tool patent in 1953. Astro aquired Buchanan in 1986.

Interesting time line of the Astro company if your bored:
https://www.astrotool.com/About-Us/History

Interesting read on military crimping history:
http://www.dmctools.com/Products/crimping_facts.html

I ended up purchasing a Astro 10692 Crimp tool for... wait for it... $12.99 + $5.88 shipping. I will need to figure out what the correct positioner will be but that should be easy to solve. I will post that info when I receive it.

Anyways... I thought some might be interested. Have a great weekend everyone

~ Matt

Post by **wesk** » Fri Nov 18, 2016 11:39 pm

The 10692 tool uses three primary positioners.

MS3191-20A Astro PN 11062 Red

MS3191-16A Astro PN 2520-3 Blue

MS3191-12A Astro PN 2520-4 Yellow

Here are two links you may want to use. They are for a user guide & a operator's manual;

http://www.spacecraft.com/flashbook/ext ... ge0017.pdf

https://www.astrotool.com/DesktopModule ... 692_IS.pdf

skyjeep50 · Post by **skyjeep50** » Sat Nov 19, 2016 7:27 am

You can also solder the ends on. If you just have a few, saves time and expense.

Post by **wesk** » Sat Nov 19, 2016 8:04 am

The reason the Military and the aviation industry steered away from soldering pins to connector type harnesses is the issue with the solder wicking down the strands and later after a period of exposure to movement and vibration the wires, unable to flex at the edge of the solder, would break. So avoid soldering any connection subject to vibration and/or excessive movement.

4x4M38 · Post by **4x4M38** » Sat Nov 19, 2016 8:18 am

For those with deep pockets....

http://m.ebay.com/itm/Vintage-Military- ... Ciid%253A1

RICKG · Post by **RICKG** » Sat Nov 19, 2016 11:53 am

Note the wire strippers in the lower tray of Brian's E-pay link. Quick stripping of insulation w/o breaking strands. The set in the fotos below were Dad's, I'm always reaching for them during wiring projects.
Speedex Mfg, Rockford Ill USA.

kenperkins · Post by **kenperkins** » Sat Nov 19, 2016 12:25 pm

if that kit was properly stocked it would be worth the money

dayboy42 · Post by **dayboy42** » Sat Nov 19, 2016 4:04 pm

4x4M38 wrote:For those with deep pockets....

http://m.ebay.com/itm/Vintage-Military- ... Ciid%253A1

Click... Click... done Thank you

This will be my winter project to restock it properly.

I actually use the same type of strippers every day at work. Didn't realize that design has been around that long. I do love them although they are not great for tight areas.

~ Matt