The Converter,synchro, cataloged under National Stock Number 4920-00-407-7971, 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 North Atlantic Industries, Inc. Dba North Atlantic Industries. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Converter,synchro |
| FSC / FSG | 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment (FSG 49) |
| Manufacturers | North Atlantic Industries, Inc. Dba North Atlantic Industries (CAGE 0VGU1) |
| Parameter | Value |
|---|---|
| NSN | 4920-00-407-7971 |
| Primary Part Number | 405461-2161 |
| Item Name | Converter,synchro |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | North Atlantic Industries, Inc. Dba North Atlantic Industries |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 405461-2161 PRIMARY | North Atlantic Industries, Inc. Dba North Atlantic Industries (USA) |
| 546-31 | North Atlantic Industries, Inc. Dba North Atlantic Industries (USA) |
| C407000004 PRIMARY | North Atlantic Industries, Inc. Dba North Atlantic Industries (USA) |
| Reference | Meaning |
|---|---|
| C407000004 | 7/2 Vendor item drawing reference U.S. Government activity |
| 546-31 | 5/9 Secondary reference Nai Technologies Inc |
| 405461-2161 | 5/9 Secondary reference Nai Technologies Inc |
| C407000004 | 5/9 Secondary reference Nai Technologies Inc |
NSN 4920-00-407-7971 is a Converter,synchro, manufactured by North Atlantic Industries, Inc. Dba North Atlantic Industries, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-00-407-7971 has 3 manufacturer part numbers on file: 405461-2161 (North Atlantic Industries, Inc. Dba North Atlantic Industries), 546-31 (North Atlantic Industries, Inc. Dba North Atlantic Industries), C407000004 (North Atlantic Industries, Inc. Dba North Atlantic Industries).
3 possible matches (shared part number, not a government interchangeability claim): 1620-00-450-4738, 5905-01-281-0010, 4730-01-675-1619. Verify interchangeability with system specifications before substitution.
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.