Part Number 21X-B-0012-1 having (CAGE Code 04638) and FSC 3040 Miscellaneous Power Transmission Equipment in stock with ready to ship. Get an instant quote for 21X-B-0012-1 Shaft Assembly Flexible by Transdigm Inc. Fill the form below with your desired order quantity, targeted price and the expected order-fulfilment date. Our dedicated account manager will get back to you within 15 minutes.