The Adjusting Device,belt-Chain Tens, cataloged under National Stock Number 2990-01-666-9499, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Ford Motor Co General Parts Division. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-666-9499 |
| Primary Part Number | BK2Q6K261AA |
| Item Name | Adjusting Device,belt-Chain Tens |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Ford Motor Co General Parts Division |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 7423178873 | Arquus (FRA) |
| 23178873 | Volvo Lastvagnar Aktiebolag (SWE) |
| BK2Q6K261AA PRIMARY | Ford Motor Co General Parts Division (USA) |
| Reference | Meaning |
|---|---|
| 23178873 | 5/9 Secondary reference Volvo Lastvagnar Ab - Volvo Truckcorp |
NSN 2990-01-666-9499 is a Adjusting Device,belt-Chain Tens, manufactured by Ford Motor Co General Parts Division, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-666-9499 has 3 manufacturer part numbers on file: 7423178873 (Arquus), 23178873 (Volvo Lastvagnar Aktiebolag), BK2Q6K261AA (Ford Motor Co General Parts Division).
Key specifications for BK2Q6K261AA: Special Features: NEXT HIGHER ASSEMBLY K02.040 TIMING GEAR; Part Name Assigned by Controlling Agency: TENSIONER. 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.