The Muffler,exhaust, cataloged under National Stock Number 2990-01-367-2155, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Donaldson Company, Inc.. Government technical data includes 10 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-367-2155 |
| Primary Part Number | BIU03-0178 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Donaldson Company, Inc. |
| Status | ACTIVE |
| Operating Position | UNIVERSAL |
| Inlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| Design Type | DRY |
| Overall Diameter | 8.500 INCHES NOMINAL IN |
| Inlet Thread Location | EXTERNAL SINGLE INLET |
| Inlet Connection Type | THREADED SINGLE INLET |
| Thread Direction | RIGHT-HAND SINGLE INLET |
| Body Shape | ROUND |
| Inlet Thread Series Designator | NPT SINGLE INLET |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| 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 |
|---|---|
| BIU03-0178 PRIMARY | Donaldson Company, Inc. (USA) |
| 580615-002 | Pacific Consolidated Industries Llc (USA) |
| Reference | Meaning |
|---|---|
| 580615 | D/9 Drawing number reference only Pacific Consolidated Industries Llc |
NSN 2990-01-367-2155 is a Muffler,exhaust, manufactured by Donaldson Company, Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-367-2155 has 2 manufacturer part numbers on file: BIU03-0178 (Donaldson Company, Inc.), 580615-002 (Pacific Consolidated Industries Llc).
Key specifications for BIU03-0178: Operating Position: UNIVERSAL; Inlet Location: CENTRALLY LOCATED IN END SECTION OF BODY; Design Type: DRY; Overall Diameter: 8.500 INCHES NOMINAL IN. 10 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.