The Fixture,aircraft Maintenance, cataloged under National Stock Number 4920-00-451-3674, 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 Acron Aviation, Inc.. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-00-451-3674 |
| Primary Part Number | 570-1066-02 |
| Item Name | Fixture,aircraft Maintenance |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Acron Aviation, Inc. |
| Status | ACTIVE |
| Reference Data and Literature | SERD NO. 0905; TO 5F8-10-9-4 |
| Functional Description | USED TO ADJUST THE INNER AXIS END PLAY OF THE STANDBY GYRO VERTICAL REFERENCE INDICATOR DURING REASSEMBLY |
| 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 |
|---|---|
| 570-1066-02 PRIMARY | Acron Aviation, Inc. (USA) |
| JF4 | Acron Aviation, Inc. (USA) |
NSN 4920-00-451-3674 is a Fixture,aircraft Maintenance, manufactured by Acron Aviation, Inc., classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-00-451-3674 has 2 manufacturer part numbers on file: 570-1066-02 (Acron Aviation, Inc.), JF4 (Acron Aviation, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-311-7227. Verify interchangeability with system specifications before substitution.
Key specifications for 570-1066-02: Reference Data and Literature: SERD NO. 0905; TO 5F8-10-9-4; Special Features: TO NAME: INNER AXIS ENDPLAY FIXTURE; Functional Description: USED TO ADJUST THE INNER AXIS END PLAY OF THE STANDBY GYRO VERTICAL REFERENCE INDICATOR DURING REASSEMBLY; End Item Identification: F-15 ACFT VERTICAL REFERENCE GYROSCOPE INDICATOR MODEL A1-803. 2 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 4920-00-451-3674 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.