The Adapter,flywheel Housing, cataloged under National Stock Number 2990-01-652-6263, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2990-01-652-6263 |
| Primary Part Number | 29542232 |
| Item Name | Adapter,flywheel Housing |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Overall Diameter | 144.0 MILLIMETERS NOMINAL MM |
| Material | STEEL |
| 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 |
|---|---|
| 7420890613 | Arquus (FRA) |
| 20890613 | Volvo Lastvagnar Aktiebolag (SWE) |
| 29542232 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| Reference | Meaning |
|---|---|
| 20890613 | 5/9 Secondary reference Volvo Lastvagnar Ab - Volvo Truckcorp |
NSN 2990-01-652-6263 is a Adapter,flywheel Housing, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-652-6263 has 3 manufacturer part numbers on file: 7420890613 (Arquus), 20890613 (Volvo Lastvagnar Aktiebolag), 29542232 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 29542232: Overall Diameter: 144.0 MILLIMETERS NOMINAL MM; Part Name Assigned by Controlling Agency: PLATE WEAR VRT MD5/MD7; Material: STEEL. 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.