The Hanomag 996721004 is an authentic 55 mm snap ring, also known as a retaining ring or Sicherungsring, specifically designed for Hanomag agricultural and construction machinery. This essential component features an inner diameter of 55 mm and a thickness of 2 mm, ensuring a precise and secure fit. It is commonly used in various Hanomag R-series tractor models, including the R16, R19, R22, R27, R35, R45, and R55, to reliably secure shafts or housings. Manufactured to original equipment specifications, this snap ring provides durability and maintains the integrity of mechanical assemblies.