Anyone got one of these going spare? (ejector seat part)

I’ve got a Mk.7 (Phantom) seat which is missing this very small, but important, part. It’s an (I think) interlock which trips the Barostat/BTRU when the ejection seat is fired.

The part I need is the small shapely chrome-plated part at the top of the yellow trip rod in the picture. It’s about two inches long, all told.

I need it to be able to reset the barostat to allow the harness, etc. to be reassembled to the seat. This little bit, when pulled out, arms the barostat which, if it is below the trip height (13,000ft for US Mk.7’s and 10,000ft for British Mk.7’s) allows man/seat separation and releases the pilot and his parachute.

Above the given altitudes, the barostat doesn’t “fire” so the ejected crewman is held in the seat until the set altitude is reached. It’s all automatic in case of crewman incapacitation but without this little pin the barostat can’t be reset to allow the harness, etc., to be locked back into the seat.

Sorry, long-winded explanation, as usual:o

Anon.