electrical trailer plug

Does anyone have the diagram of which pin on the connector is which especially on the tow vehicle side remember seeing it on joe youngs old site

I found this when I searched for" Trailer pinout".

http://www.steelsoldiers.com/index.php?name=PNphpBB2&file=viewtopic&t=10991&highlight=trailer+pinout

http://www.olive-drab.com/od_nato_trailer_connector.php3

http://www.olive-drab.com/od_mvg_technical_reference.php3

Connector Pin Circuit Number Circuit Usage (M-Series Trailer Receptacle Pinout)
A 24A Blackout Tail Light
B 22 Stop Lamp
C 24B Blackout Tail Lamp
D 90 Ground
E 21 Service Tail Lamp
F 23 Blackout Stop Lamp

R
23- BO stop
22-460 stop and turn
24-483 BO tail and turn
21 service tail

L
23 BO stop
22-461 stop and turn
24-484 BO tail and turn
21 service tail

90- ground