| Tail Number / N-Number | N681DG |
| Manufacturer | FAIRCHILD |
| Model | C-123K |
| Manufacturer's Serial Number | 54-681 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 52 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 5 engines |
| Type of Registrant | Corporation |
| Owner Name | HAGERSTOWN AVIATION MUSEUM INC |
| Street | 18450 SHOWALTER RD BLDG 8 |
| City | HAGERSTOWN |
| State | MD |
| Zip Code | 21742-1383 |
| Region | Eastern |
| County | Washington County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2013-02-15 |
| Last Action Date | 2021-10-26 |
| Expiration Date | 2029-02-28 |
| Status | Valid Registration |
| Mode S Code | 52203500 |
| Mode S Code Hex | A90740 |