SOE Switch No.5 Mk.1 Pressure Safety Pin

[Scout Sniper]

Hello all,

I have a Switch No.5 Mk.1 pressure and the safety pin is missing.

In the interest of keeping things as original as possible does anybody know the dimensions of the original pin? I don't really work with imperial so i need help.

Also what is the finish? Mild steel, zinc plated or brass?

Many thanks

 

[kiwieod]

you will find most of what you need to know here.there are 2 other parts to this series which is writen by one of the forum members
tbrm 1.pdf (foxed.ca)

 

[Scout Sniper]

Thanks, i appreciate the reply. I already have that .pdf but is does not contain the information i am looking for...

 

[ron3350]

I will try to find my Switch No5 Mk1 and give dimensions of the safety pin in mm for you. Not sure where I stored them at this time.

 

[ron3350]

The split pin looks like zinc coated but the head looks like normal steel?
Split pin is 1.5mm diam., 40.5mm long, 3.5mm loop diam, cord is 1.5mm? light brown. 4 wraps around the body then tucked under as shown.

 

[Scout Sniper]

Thanks for the information, very helpful.

 

[millsbomber]

i have a ball of that cord if any one needs any.... for a small fee and postage

 

[Houndsworth]

Here are the only two I have with safety pins. The unpainted one below has a long split pin and I don't know if long ones were issued. For the record it is 2.52 inches long overall if straightened. The eye is .158 inch across and is oval, like most split pins, not round. The material is half-round steel wire .033 by .059 inch. One leg is .15 inch shorter than the other.

The 1972 dated switch has a piece of .036 round steel wire bent at 90 degrees and is 2.625 overall. Looks home-made but it does the job.

Hope this helps.

John
"I would be anal but I'm too much a perfectionist"

 

[glevum]

.036 is 20 swg or 0.9mm

It is a common size of florist's wire.