HP Washer Plain Polyslider 6031-001584 is a flat washer component for use where a Polyslider washer of this size is required. Its listed dimensions are 4 mm inner diameter, 7 mm outer diameter and 0.5 mm thickness, giving a concise way to identify this particular part.
The washer is listed in black. The HP reference 6031-001584 distinguishes it from other washer parts, while the stated dimensions describe its fit. It is a small replacement component intended to be selected by its part reference and confirmed size.