The Test Set,flight Control System, cataloged under National Stock Number 4920-01-407-2187, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-407-2187 |
| Item Name | Test Set,flight Control System |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Status | ACTIVE |
| Reference Data and Literature | SERD 22-93-0001 |
| Functional Description | IMPLEMENT ON-BOARD CHECKOUT AND TROUBLESHOOTING OF THE AP-105 AUTOPILOTAND FD-109 FLIGHT DIRECTOR |
| Enclosure Feature | MULTIPLE ITEM W/CARRYING CASE |
| Test Type for Which Designed | ISOLATE FAULTY COMPONENTS OR ACFTWIRING ASSOCIATED WITH AUTO PILOT AND NAVIGATION INSTRUMENT SWITCHING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL C — Remove/Demil Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| ES125105-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4920-01-407-2187 is a Test Set,flight Control System, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
Key specifications for 4920-01-407-2187: Reference Data and Literature: SERD 22-93-0001; Special Features: HOUSED IN TWO CASES ONE CONTAINS THE BREAKOUT PANELS FOR THE AUTOPILOT AMPLIFIER AND THE FLISHT DIRECTOR/MODECOUPLER, THE OTHER CONTAINS THE SIMULATION PANEL; Functional Description: IMPLEMENT ON-BOARD CHECKOUT AND TROUBLESHOOTING OF THE AP-105 AUTOPILOTAND FD-109 FLIGHT DIRECTOR; Enclosure Feature: MULTIPLE ITEM W/CARRYING CASE. 4 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 4920-01-407-2187 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.