The Pipe,exhaust, cataloged under National Stock Number 2990-01-654-0398, 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 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2990-01-654-0398 |
| Primary Part Number | 5660235 |
| Item Name | Pipe,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Design Form | PREBENT |
| Nominal Outside Diameter | 6.750 INCHES IN |
| Usage Location | EXHAUST PIPE |
| 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 |
|---|---|
| 5660235 PRIMARY | Cummins Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3625291 | 5/9 Secondary reference Cummins Inc. |
NSN 2990-01-654-0398 is a Pipe,exhaust, manufactured by Cummins Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-654-0398 has 1 manufacturer part number on file: 5660235 (Cummins Inc.).
Key specifications for 5660235: Design Form: PREBENT; Nominal Outside Diameter: 6.750 INCHES IN; Part Name Assigned by Controlling Agency: CONNECTION, EXHAUST OUTLET; End Item Identification: 2815-01-631-9826; ENGINE, DIESEL. 3 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.