The Track Assembly, cataloged under National Stock Number 4920-01-056-9688, 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 William F Ruckle Dba Ruckle Manufacturing. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4920-01-056-9688 |
| Primary Part Number | 2-76515-55 |
| Item Name | Track Assembly |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | William F Ruckle Dba Ruckle Manufacturing |
| Status | ACTIVE |
| FSC Application Data | TEST STAND,ADAPTER,4920003326837 |
| 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 |
|---|---|
| 2-76515-55 | William F Ruckle Dba Ruckle Manufacturing (USA) |
| 2-76515-55 | Redco Inc Sub of Abm Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 2-76515-55 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 2-76515-55 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
NSN 4920-01-056-9688 is a Track Assembly, manufactured by William F Ruckle Dba Ruckle Manufacturing, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-056-9688 has 2 manufacturer part numbers on file: 2-76515-55 (William F Ruckle Dba Ruckle Manufacturing), 2-76515-55 (Redco Inc Sub of Abm Industries Inc).
Key specifications for 2-76515-55: FSC Application Data: TEST STAND,ADAPTER,4920003326837. 1 specification is 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.