● Free length (mm): 55
● Outer diameter (mm): 12
● D(mm):12
● L(mm):55
● d(mm):6
● Spring constant (N/mm): 16.2
● Spring constant (kgf/mm): (1.65)
● Distinguishing Color: Red
● Material/Finish: SWOSC-V equivalent
● Mass: 18.3 g
● Country of origin: China
● Securities Code: 255 -3505