The Test Set,synchro, cataloged under National Stock Number 4920-00-938-6784, 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 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-00-938-6784 |
| Primary Part Number | 522-3498-000 |
| Item Name | Test Set,synchro |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Reference Data and Literature | T.O. 33AA38-13-11 |
| Height | 5.300 INCHES NOMINAL IN |
| Functional Classification | AA-9.6 |
| Depth | 4.800 INCHES NOMINAL IN |
| Enclosure Feature | SINGLE ITEM W/HOUSING |
| Width | 19.000 INCHES NOMINAL IN |
| Test Type for Which Designed | GYRO COMPASS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 522-3498-000 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| SM508AYN2 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 4920-00-938-6784 is a Test Set,synchro, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-00-938-6784 has 1 manufacturer part number on file: 522-3498-000 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 522-3498-000: Reference Data and Literature: T.O. 33AA38-13-11; Height: 5.300 INCHES NOMINAL IN; Functional Classification: AA-9.6; Special Features: TWO SYNCHRO TRANSMITTERS,SYNCHRO CONTROL TRANSFORMER,AND A DIAL INDICATOR. 7 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.
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.