The Fixture,machining,aircraft Engin, cataloged under National Stock Number 4920-01-441-7406, 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 General Electric Company. Government technical data includes 2 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-441-7406 |
| Primary Part Number | 3C4121G01 |
| Item Name | Fixture,machining,aircraft Engin |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Reference Data and Literature | SERD NO 6067 |
| Functional Description | USED TO POSITION AND RESTRAIN THESEAL SUPPORT OF THE HIGH PRESSURE TURBINE |
| 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 |
|---|---|
| 3C4121G01 PRIMARY | General Electric Company (USA) |
NSN 4920-01-441-7406 is a Fixture,machining,aircraft Engin, manufactured by General Electric Company, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-441-7406 has 1 manufacturer part number on file: 3C4121G01 (General Electric Company).
Key specifications for 3C4121G01: Reference Data and Literature: SERD NO 6067; Special Features: C/O 2 MAJOR COMPONENTS A 24.3 OUTER DIA X 17.25 INNER DIA X 1.9 IN HIGHBASE RING AND A 24.3 OUTER DIA X 22.13INNER DIA X 1.3 IN HIGH ANNULAR RING/BOTH MATL ALLOY STEEL IN; Functional Description: USED TO POSITION AND RESTRAIN THESEAL SUPPORT OF THE HIGH PRESSURE TURBINE; End Item Identification: USED IN REPAIR OF HIGH PRESSURE TURBINE SEAL SUPPORT IN ENGINES, F110-GE-100, -129, F118-GE-100, F110-GE-400. 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.
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.