This is a fuel control unit used on Pratt & Whitney J57 turbine engines. This one has a military serviceable tag showing overhaul by Aero Turbine on 6/29/84 and has been in storage since. It is in very good condition and the housing or mounts. The shaft and connector are also undamaged but the unpainted bolt heads have some light surface rust from storage (see images). The data plate reads NEW PART NO. 021077-050-01, ORDER NO. DA-64367, PESCO PRODUCTS. Unfortunately I have no way to test it so listing it AS IS. Thank you for looking and please see our many other aviation sales.

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