The Muffler,exhaust, cataloged under National Stock Number 2990-01-449-3802, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-449-3802 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Status | ACTIVE |
| Operating Position | HORIZONTAL |
| Coolant Type | AIR |
| Design Type | DRY |
| Muffler Design | BAFFLE |
| Inlet Connection Type | FLANGE SINGLE INLET |
| Outlet Connection Type | UNTHREADED FIRST OUTLET |
| 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 |
|---|---|
| F4TZ5230C | 3/9 Design control — primary reference Ford Motor Company |
| F4TZ5230C | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| E9TZ5230S | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| F4TZ5230C | 5/9 Secondary reference Graham Ford, Inc. Dba Graham Services |
NSN 2990-01-449-3802 is a Muffler,exhaust, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
Key specifications for 2990-01-449-3802: Operating Position: HORIZONTAL; Coolant Type: AIR; Design Type: DRY; Muffler Design: BAFFLE. 6 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.