HP 6031-001255 is a plain washer for use as a small component in an assembly. The listing identifies it as a Polysider cutting washer, giving the part a more specific description than a generic washer.
Its designation includes ID5 and OD9, distinguishing this size from other washer variants. The part number provides the exact reference for identifying this component in a parts list or replacement search. This description covers the washer identified by that reference and those listed details.