The Fixture,aircraft Maintenance, cataloged under National Stock Number 4920-01-493-1986, 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 3 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Fixture,aircraft Maintenance |
| FSC / FSG | 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment (FSG 49) |
| Parameter | Value |
|---|---|
| NSN | 4920-01-493-1986 |
| Item Name | Fixture,aircraft Maintenance |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Reference Data and Literature | SERD NO 6386 |
| Functional Description | USED TO REPAIR THE ELECTRICALLY CONTROLLED HYDRAULIC SERVOCYLINDERS FOR ACTUATING THE AILERON AND RUDDER FLIGHT CONTROL SURFACES;USED TO INSTALL THE SEALS DURING OVERHAUL OR REPAIR OF THE CYLINDER AND LVDT ASSY, THEY MUST BE COMPRESSED WITHIN THEIR RESPECTIVE GROOVES TO PREVENT THEM FROM BEING DAMAGED AS THE END GLAND IS INSTALLED OVER THE PISTON ROD-THIS FIXTURE WILL SATISFY THIS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| 87001398-ASAD | 3/2 Design control — primary reference U.S. Government activity |
NSN 4920-01-493-1986 is a Fixture,aircraft Maintenance, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
Key specifications for 4920-01-493-1986: Criticality Code Justification: AGAV; Reference Data and Literature: SERD NO 6386; Functional Description: USED TO REPAIR THE ELECTRICALLY CONTROLLED HYDRAULIC SERVOCYLINDERS FOR ACTUATING THE AILERON AND RUDDER FLIGHT CONTROL SURFACES;USED TO INSTALL THE SEALS DURING OVERHAUL OR REPAIR OF THE CYLINDER AND LVDT ASSY, THEY MUST BE COMPRESSED WITHIN THEIR RESPECTIVE GROOVES TO PREVENT THEM FROM BEING DAMAGED AS THE END GLAND IS INSTALLED OVER THE PISTON ROD-THIS FIXTURE WILL SATISFY THIS; End Item Identification: F/A-18 AIRCRFT. 3 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 4920-01-493-1986 has DEMIL Code B. 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.