The Fixture,aircraft Maintenance, cataloged under National Stock Number 4920-00-137-6906, 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 Goodrich Corporation. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-00-137-6906 |
| Primary Part Number | 2559230 |
| Item Name | Fixture,aircraft Maintenance |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| Reference Data and Literature | TO 4SA2-36-3 |
| Functional Description | USED TO HOLD STEERING UNIT DURING FUNCTIONAL TESTING AFTER OVERHAUL |
| 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 |
|---|---|
| 2559230 PRIMARY | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 2559230 | 5/9 Secondary reference Goodrich Corp Dba Goodrich Corp |
| 2559230 | 3/9 Design control — primary reference Goodrich Corporation Div Advanced Structures Landing Systems |
| 2559230 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) |
NSN 4920-00-137-6906 is a Fixture,aircraft Maintenance, manufactured by Goodrich Corporation, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-00-137-6906 has 1 manufacturer part number on file: 2559230 (Goodrich Corporation).
Key specifications for 2559230: Reference Data and Literature: TO 4SA2-36-3; Special Features: FIXTURE, CYLINDER AND VALVE ASSEMBLY TEST; Functional Description: USED TO HOLD STEERING UNIT DURING FUNCTIONAL TESTING AFTER OVERHAUL; End Item Identification: A-37 AIRCRAFT STEERING UNIT CYLINDER AND VALVE ASSEMBLY 2570949 AND 2577842. 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.