Thanks for writing in. Unfortunately I could not find any solid information for you, but I do have some information you can look into. Try looking into this:
STYLUS WITH LANYARD - NIIN: 7010-01-534-4014
PEN,STYLUS - NIIN: 7010-01-525-3237
Here are the webpage links where more detailed information can be found on those:http://www.tpub.com/content/logistics/70/10/17/01-534-4014.htmhttp://www.tpub.com/content/logistics/70/10/17/01-525-3237.htm
Here are some webpage links with some more general information on the AN/PYQ-10http://www.thefreelibrary.com/AN%2FPYQ-10(C)+simple+key+loader+battery+charger+components.-a0170816223http://www.tpub.com/content/logistics/7 ... /index.htm
I hope some of the information in there can be useful for you.