The Fixture,aircraft Maintenance, cataloged under National Stock Number 4920-00-563-5219, 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 Allison Transmission Inc Dba Allison Transmission, Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-00-563-5219 |
| Primary Part Number | T4289 |
| Item Name | Fixture,aircraft Maintenance |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Reference Data and Literature | TO 2J-Y56-24; NAVAIR 02B-5DA-504 |
| Functional Description | USED IN SUPPORT ON THE ENGINES |
| 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 |
|---|---|
| T4289 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| Reference | Meaning |
|---|---|
| T4289 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| T4289 | 5/9 Secondary reference General Motors Corp |
NSN 4920-00-563-5219 is a Fixture,aircraft Maintenance, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-00-563-5219 has 1 manufacturer part number on file: T4289 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for T4289: Reference Data and Literature: TO 2J-Y56-24; NAVAIR 02B-5DA-504; Special Features: TO NAME: FIXTURE,SETTING,DEGREE ROTATION,COORDINATOR; Functional Description: USED IN SUPPORT ON THE ENGINES; End Item Identification: T-56A-7 TURBO PROP ENGINE A. 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.