There are 2 drawings for part 108-51861 available in AirCorps Library

Manufacturer's Drawing

North American Aviation,   B-25 Mitchell Drawings,   Page: --,   Revision: n/a  

LINE: - STA. 87 TO 106 CHECK VALVE TO R. ENG. VAC. INST.

Associated Aircraft:   B-25  

Manufacturer's Drawing

North American Aviation,   B-25 Mitchell Drawings - May / Sept 1945,   Page: --,   Revision: n/a  

LINE: - STA. 87 TO 106 CHECK VALVE TO R. ENG. VAC. INST.

Associated Aircraft:   B-25