The Muffler,exhaust, cataloged under National Stock Number 2990-01-211-1077, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-211-1077 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Status | ACTIVE |
| Operating Position | HORIZONTAL |
| Inlet Location | LOCATED AT SIDE IN END SECTION OF BODY |
| Coolant Type | AIR |
| Design Type | DRY |
| Inlet Connection Type | UNTHREADED SINGLE INLET |
| Body Shape | ROUND |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Connection Type | UNTHREADED FIRST OUTLET |
| Outlet Location | LOCATED AT SIDE IN END SECTION OF BODY |
| 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 |
|---|---|
| 2079900 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| 2079900 | 3/9 Design control — primary reference Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 |
NSN 2990-01-211-1077 is a Muffler,exhaust, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
Key specifications for 2990-01-211-1077: Operating Position: HORIZONTAL; Inlet Location: LOCATED AT SIDE IN END SECTION OF BODY; Coolant Type: AIR; Design Type: DRY. 9 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.