Hybrid open ring, 210 mm
NSN 6610-01-593-0135
NSN 6645-01-461-9250
NSN 5920-01-476-0758
NSN 6130-01-603-0999
NSN 5960-00-817-5088
NSN 5930-01-062-0695
NSN 5996-01-348-2914
NSN 5910-01-124-8476
NSN 5835-00-911-2340
NSN 5965-00-732-8608
NSN 5960-00-959-7413
NSN 5975-00-204-9190