The Test Set,flight Control System, cataloged under National Stock Number 4920-01-142-5621, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Lockheed Martin Corporation. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-142-5621 |
| Primary Part Number | 10140A649-301 |
| Item Name | Test Set,flight Control System |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Length | 13.250 INCHES NOMINAL IN |
| Reference Data and Literature | T.O. 33D2-25-11-1 |
| Height | 12.000 INCHES NOMINAL IN |
| Functional Description | USED TO TEST MODEL 209 DIGITAL FLIGHT DATA RECORDER AND FLIGHT DATA ACQUISITION UNIT |
| Width | 9.250 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL C — Remove/Demil Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 10140A649-301 PRIMARY | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| 10140A649 | 5/9 Secondary reference U.S. Government activity |
| 10140A649-301 | 5/9 Secondary reference U.S. Government activity |
NSN 4920-01-142-5621 is a Test Set,flight Control System, manufactured by Lockheed Martin Corporation, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-142-5621 has 1 manufacturer part number on file: 10140A649-301 (Lockheed Martin Corporation).
Key specifications for 10140A649-301: Length: 13.250 INCHES NOMINAL IN; Reference Data and Literature: T.O. 33D2-25-11-1; Height: 12.000 INCHES NOMINAL IN; Special Features: FOLDING HANDLES; 115 VAC, 400 HZ , SINGLE PHASE, 30 WATTS VAC. 5 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4920-01-142-5621 has DEMIL Code C. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.