Quick view Add to Cart Overhaul with Parts Breakdown for Solenoid Operated 3 Way Hydraulic Valve - Part 640 Document Part Number: T.O. No. 9H8-30-66-3 Number of pages: 8Part Number: T.O. No. 9H8-30-66-3Revision Date: 1-Feb-1967 MSRP: Was: Now: $15.00