The Adjusting Device,belt-Chain Tens, cataloged under National Stock Number 2990-01-293-8334, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Amz Alabama Inc.. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Adjusting Device,belt-Chain Tens |
| FSC / FSG | 2990 — Miscellaneous Engine Accessories, Nonaircraft (FSG 29) |
| Manufacturers | Garage De Genas (CAGE FC1R9); Mercedes-Benz Ag (CAGE CN7Z7); Amz Alabama Inc. (CAGE 076M6) |
| Parameter | Value |
|---|---|
| NSN | 2990-01-293-8334 |
| Primary Part Number | 93818-991 |
| Item Name | Adjusting Device,belt-Chain Tens |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Amz Alabama Inc. |
| 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 |
|---|---|
| A6010500711 | Garage De Genas (FRA) |
| 6010500711 | Mercedes-Benz Ag (DEU) |
| 93818-991 PRIMARY | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| 4538741-012 | 5/9 Secondary reference Bae Systems Hagglunds Ab |
| 6010500711 | 5/9 Secondary reference Daimler Ag |
| 93818-991 | 5/9 Secondary reference U.s. Defense Services, Inc. Dba Usds |
NSN 2990-01-293-8334 is a Adjusting Device,belt-Chain Tens, manufactured by Amz Alabama Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-293-8334 has 3 manufacturer part numbers on file: A6010500711 (Garage De Genas), 6010500711 (Mercedes-Benz Ag), 93818-991 (Amz Alabama Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-471-2761. Verify interchangeability with system specifications before substitution.
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.