Quick view Add to Cart Illustrated Parts Breakdown for Gyro Horizon Indicators Model H-6, H-6A Part No. 673391, 686531, 678601, 613937 Document Part Number: NAVAIR 05-20GD-15 Number of pages: 34Part Number: NAVAIR 05-20GD-15Revision Date: 15-Oct-1973Description: Manufactured by: Sperry MSRP: Was: Now: $22.14