20BD14U01 up for sale is a blue aluminum fluid passage bolt fitting , new part , covered under NAS 552 4D 4730-00-555-9414 , new part from USA military surplus also covered under SAE AS4875/1 this fitting is used on many aircraft frames and is also used on the Pratt and Whitney TF33-PW-102 jet engine , see our store for more items like this we add new items weekly , thank you RWK