If you’re in need of 1789-7 or Airframe, from Agustawestland S.P.A., Aerospace Unlimited is your one stop shop. We carry Helicopter parts and other items as Ring,Externally Threaded. If there is something specific that you are searching for, browse by Aircraft Model part number such as 1789-7 in our catalogues to find what you need. KCTF9, engines, fasteners are just a few of the 6 billion items that we can inventory. And thanks to the various shipping locations that we have, we can ship almost anywhere. Contact us today to get an immediate quote!