. . "United States. Army" . . "Organizational maintenance manual : altimeter set, electronic, AN/APN-171A(V)1"@en . "Altimeter set, electronic, AN/APN-171A(V)1"@en . . . . . . . . . . . "Handbooks and manuals"@en . . "Organizational maintenance manual altimeter set, electronic, AN/APN-171A(V)1"@en .