The Adjusting Device,belt-Chain Tens, cataloged under National Stock Number 2990-01-271-9816, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Cummins Inc.. 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-271-9816 |
| Primary Part Number | 5333478 |
| Item Name | Adjusting Device,belt-Chain Tens |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | CYLINDRICAL SHAPED WITH ATTACHMENT HOLE; PART OF ENGINE GENERATOR |
| 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 |
|---|---|
| 5333478 PRIMARY | Cummins Inc. (USA) |
| 91729173 | Thales Sa (FRA) |
| Reference | Meaning |
|---|---|
| 2990012719816 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 3937556 | 5/9 Secondary reference Cummins Inc. |
| 3911621 | 5/9 Secondary reference Cummins Inc. |
| 3922901 | 5/9 Secondary reference Cummins Inc. |
| 3976832 | 5/9 Secondary reference Cummins Inc. |
| 3934823 | 5/9 Secondary reference Cummins Inc. |
NSN 2990-01-271-9816 is a Adjusting Device,belt-Chain Tens, manufactured by Cummins Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-271-9816 has 2 manufacturer part numbers on file: 5333478 (Cummins Inc.), 91729173 (Thales Sa).
Key specifications for 5333478: General Characteristics Item Description: CYLINDRICAL SHAPED WITH ATTACHMENT HOLE; PART OF ENGINE GENERATOR; End Item Identification: 2320-01-230-0307. 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.