Quick view Add to Cart Overhaul with Parts Breakdown for Emergency Depressurization Door Actuator Mechanism - Parts K51156, K51156-7, and K51156-9 Document Part Number: T.O. No. 9H2-5-112-3 Number of pages: 8Part Number: T.O. No. 9H2-5-112-3Revision Date: 15-April-1960Description: Mfg By: Thompson Ramo MSRP: Was: Now: $15.00