The Pipe,exhaust, cataloged under National Stock Number 2990-00-561-8672, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-00-561-8672 |
| Item Name | Pipe,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Status | ACTIVE |
| Design Form | PREBENT |
| Nominal Overall Length | 12.000 INCHES IN |
| Wall Thickness | 0.0625 INCHES NOMINAL IN |
| Nominal Outside Diameter | 3.000 INCHES IN |
| Surface Treatment | NICKEL |
| Material | STEEL |
| Usage Location | TAIL PIPE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 795297R1 | 5/9 Secondary reference U.S. Government activity |
| 91315R1 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| 91315R1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2990-00-561-8672 is a Pipe,exhaust, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
Key specifications for 2990-00-561-8672: Design Form: PREBENT; Nominal Overall Length: 12.000 INCHES IN; Wall Thickness: 0.0625 INCHES NOMINAL IN; Nominal Outside Diameter: 3.000 INCHES IN. 7 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.