The Muffler,exhaust, cataloged under National Stock Number 2990-01-436-9535, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Cummins Filtration Inc.. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-436-9535 |
| Primary Part Number | 49160-A |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Cummins Filtration Inc. |
| Status | ACTIVE |
| Operating Position | UNIVERSAL |
| Inlet Location | LOCATED IN END SECTION OF BODY |
| Overall Diameter | 12.120 INCHES NOMINAL IN |
| Inlet Projection Length | 2.000 INCHES NOMINAL SINGLE INLET IN |
| Outlet Outside Diameter | 6.130 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Connection Type | UNTHREADED SINGLE INLET |
| Body Shape | ROUND |
| Inlet Inside Diameter | 6.000 INCHES NOMINAL SINGLE INLET IN |
| Outlet Projection Length | 3.000 INCHES NOMINAL FIRST OUTLET IN |
| Outlet Connection Type | UNTHREADED FIRST OUTLET |
| Outlet Location | CENTRALLY LOCATED 180 DEGREES FROM INLET |
| 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 |
|---|---|
| 1741AS574 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 49160-A PRIMARY | Cummins Filtration Inc. (USA) |
| 1741AS574-1 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 2990-01-436-9535 is a Muffler,exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-436-9535 has 3 manufacturer part numbers on file: 1741AS574 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 49160-A (Cummins Filtration Inc.), 1741AS574-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 49160-A: Operating Position: UNIVERSAL; Inlet Location: LOCATED IN END SECTION OF BODY; Overall Diameter: 12.120 INCHES NOMINAL IN; Inlet Projection Length: 2.000 INCHES NOMINAL SINGLE INLET IN. 11 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.