Part Number: 155-37C-12 (Spring lock) Part Number: 155-37C-16C (Coupling components) Part Number: 155-37C-5C (Lock spring) Part Number: 155-37C8 (Washer) Part Number: 155-37C-8C (Washer) Part Number: 15537M3C (No description) Part Number: 15537MHZ (No description) Part Number: 15538 (Component) Part Number: 15538-0 (Gyro compass) Part Number: 15538-010 (Case) Part Number: 1553801M3C (No description) Part Number: 155380-25176 (Hardware) Part Number: 1553802M3C (No description) Part Number: 15538040 (Ne)