What it is
AN960 flat washer, Flat washer, fits 9/16 bolt or screw; ID (A) .578" ±.010; OD (D) 1.062", thickness .032" (Table I row alignment, carbon steel / CRES columns)
Equivalents
No equivalent on file: no maker document names one and the government catalog lists none on its stock number.
Install tooling, by who made the part
Not documented for this part number. Ask a tooling specialist →

Reference only: the drawing and its process spec govern. How to read this

Full detail: decode, cited documents, every stock number
AN960C916L | SpecLok