Awning Window Closer Patent No. D-198202U8

Need three right operators and one left operator for 45 year old windows. Want to buy one right initially to ensure fit and function. Arm length is 2-3/8" - not sure about thread dimension. C-C vertical length is 5-1/4". If colors are available, white is preferred. Only information on existing closer is the patent number - no manufacturer name or part number. Thanks in advance for your assistance.