The Muffler,exhaust, cataloged under National Stock Number 2990-01-102-0205, 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 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-102-0205 |
| Primary Part Number | WAM09-0453 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Donaldson Company, Inc. |
| Status | ACTIVE |
| Operating Position | HORIZONTAL |
| Coolant Type | AIR |
| Design Type | DRY |
| Overall Diameter | 9.060 INCHES MINIMUM AND 9.560 INCHES MAXIMUM IN |
| Baffle Quantity | 1 |
| Muffler Design | STRAIGHT THROUGH W/BAFFLE |
| Body Shape | ROUND |
| 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 |
|---|---|
| 12269399 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| WAM09-0453 PRIMARY | Donaldson Company, Inc. (USA) |
NSN 2990-01-102-0205 is a Muffler,exhaust, manufactured by Donaldson Company, Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-102-0205 has 2 manufacturer part numbers on file: 12269399 (U S Army Tank Automotive Command Amsta-Im-Mm), WAM09-0453 (Donaldson Company, Inc.).
Key specifications for WAM09-0453: Operating Position: HORIZONTAL; Coolant Type: AIR; Design Type: DRY; Overall Diameter: 9.060 INCHES MINIMUM AND 9.560 INCHES MAXIMUM IN. 8 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.