The Test Set,flight Control System, cataloged under National Stock Number 4920-01-140-5997, 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 Bae Systems Controls Inc. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4920-01-140-5997 |
| Primary Part Number | 550500-01-01 |
| Item Name | Test Set,flight Control System |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Bae Systems Controls Inc |
| Status | ACTIVE |
| Phase | SINGLE LOCATION NOT OTHERWISE SPECIFIED |
| Length | 19.600 INCHES NOMINAL IN |
| AC Voltage Rating | 115.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED |
| Accessory Identifying Number | F458-50514-2 PART NO. AND TTU-455/E TYPE NO. |
| DC Voltage Rating | 28.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED |
| Reference Data and Literature | T.O.33D7-61-90-1 |
| Electrical Power Source Relationship | OPERATING |
| Height | 22.100 INCHES NOMINAL IN |
| Functional Description | PROVIDES NECESSARY POWER,INPUT TEST SIGNALS AND OUTPUT METERING TO VERIFY FUNCTIONAL INTEGRITY OF THE FCC |
| Enclosure Feature | SINGLE ITEM W/HOUSING |
| Frequency Rating | 400.0 HERTZ NOMINAL LOCATION NOT OTHERWISE SPECIFIED |
| Width | 19.750 INCHES NOMINAL IN |
| Test Type for Which Designed | SIGNAL MONITORING/TROUBLESHOOTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 550500-01-01 PRIMARY | Bae Systems Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| TTU-455/E | 5/2 Secondary reference U.S. Government activity |
| F458-50514-2 | 5/9 Secondary reference U.S. Government activity |
NSN 4920-01-140-5997 is a Test Set,flight Control System, manufactured by Bae Systems Controls Inc, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-140-5997 has 1 manufacturer part number on file: 550500-01-01 (Bae Systems Controls Inc).
Key specifications for 550500-01-01: Phase: SINGLE LOCATION NOT OTHERWISE SPECIFIED; Length: 19.600 INCHES NOMINAL IN; AC Voltage Rating: 115.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED; Accessory Identifying Number: F458-50514-2 PART NO. AND TTU-455/E TYPE NO.. 13 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 4920-01-140-5997 has DEMIL Code Q. 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.