The Tool Set Installati, cataloged under National Stock Number 4920-01-489-1424, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Tool Set Installati |
| FSC / FSG | 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment (FSG 49) |
| Parameter | Value |
|---|---|
| NSN | 4920-01-489-1424 |
| Item Name | Tool Set Installati |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| CUTA1870306C | 3/2 Design control — primary reference U.S. Government activity |
NSN 4920-01-489-1424 is a Tool Set Installati, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
Key specifications for 4920-01-489-1424: Special Features: THE TOOL SET CONTAINS A BODY TOOL, A PIN INSTALLATION TOOL, A PIN EXTRATION TOOL AND A STRIKER AND TAPSET. THE FIRST THREE TOOLS ARE THREADED AT THE END TO ENGAGE INTERNAL THREADS OF THE PIN OF THE VALVE BODY AS REQUIRED.THE STRIKER SLIDES ON THE SHAFT OF EITHER OF THE FIRST TWO TOOLS AND IS USED TO STRIKE THE HEAD, THUS DRIVING OUT THE PIN OR VALVE BODY. THE BODY TOOL IS USED TO TO PUSH THE RFI VALVE INSERT FIRMLY INTO THE REAMED BORE OF THE VALVE BODYTHE PIN INSTALLATION TOOL IS THEN USED TO PRESS THE EXPANDER PIN INTO THE VALVE BODY SO THAT THE EXTERNAL LANDS BITE INTO THE CAVITY WALL TO SEAL AND LOCK THE INSERT INTO PLACE. THE BODY INSERT OF SOME LEE CHECK VALVES NORMALLY REMOVED USING THIS SET MAY NOT BE THREADED. THE TAPSET IS PROVIDED SO THAT THE INSERE CAN BE THREADED TO ACCOMODATE THE THREADS OF THE BODY TOOL WHEN REMOVAL OF THE INSERT IS NECESSARY; Part Name Assigned by Controlling Agency: TOOL SET, INSTALLATION/EXTRACTION; End Item Identification: F/A-18. 0 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.