HUSQVARNA compatible HUSQVARNA anti-vibration spring for brushcutters, hedge trimmers and blowers Inner diameter (mm): 19 Outer diameter (mm): 5.2 External thread: 6.3 Length (mm): 44 For models: HUSQVARNA 445 445 E 450 450 E Part No.: 40271659 Original part No.: 544 101201 HUSQVARNA MPM NS