Part Number MC21660 having (CAGE Code 76050) and FSC 5340 Hardware, Commercial in stock with ready to ship. Get an instant quote for MC21660 Plug Aircraft Mater by Eaton Aerospace Llc M C Aerospac. 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.