[Collins] Tool ID

[Dr. Gerald N. Johnson]

The S-line, and 51J used as many as four different spline wrenches, a 
small one four spline the others 6 spline. Most radio manuals mention 
tools but don't list them as parts by part number. The 544 number prefix 
indicates a Collins fabricated part.

Rooting back in my archives where I rooted further back I see this post:
 > Rooting back into my archives I found a post I sent Jan 26, 2004. Says
 > the 51J and S-Line need a .060 6 spline, a .076 4 spline, a .096 6
 > spline and a .111 6 spline Bristol Spline wrenches. The long armed
 > ones
 > are handier than the short ones. I also have the same sizes in an
 > Xcelite 99 kit. Some of these also are proper for the A line and 32V > my
 > search has shown.
 >
 > In my vintage McMaster-Carr catalog (www.mcmaster.com) I see the four
 > flute .076 would be 7048A63 for less than a buck, the .060 6 flute is
 > 7048A65, the .096 is 7048A31, and the .111 is 7048A32, each for less
 > than buck a copy.

You should be able to tell the differences in sizes (outside of the 
splines) with a vernier caliper or dial caliper or micrometer or a good 
ruler with fine graduations.

On 9/12/2010 11:11 PM, Glenn Little WB4UIV wrote:
> I picked up a Bristol spline driver with a Collins part number at a
> recent hamfest.
> The part number is 544-6033-002.
> The wrench has 6 flutes.
>
> Can any one tell me what size this driver is and what radio(s) it was for?
>
> Thanks
> 73
> Glenn
> WB4UIV
>
>
73, Jerry, K0CQ, Technical Adviser to the Collins Radio Association.