Quick view Add to Cart Special Inspection of Crankshaft Bearings, Thrust Nuts, and Bearing Spacers - R-670 Series Engines Document Part Number: T.O. No. 02-40A-10 Number of pages: 2Part Number: T.O. No. 02-40A-10Revision Date: 21-Jan-1944 MSRP: Was: Now: $15.00