The Muffler,exhaust, cataloged under National Stock Number 2990-01-391-8339, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Burgess Manning, Inc. Dba Skimovex Usa. Government technical data includes 14 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 | 2990-01-391-8339 |
| Primary Part Number | 44-159-9 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Burgess Manning, Inc. Dba Skimovex Usa |
| Status | ACTIVE |
| Inlet Flange Shape | ROUND SINGLE INLET |
| Operating Position | UNIVERSAL |
| Coolant Type | AIR |
| Outlet Flange Mounting Provision and Quantity | 12 HOLES FIRST OUTLET |
| Design Type | DRY |
| Overall Diameter | 10.000 INCHES NOMINAL IN |
| Inlet Flange Mounting Hole Diameter | 0.078 INCHES NOMINAL SINGLE INLET IN |
| Outlet Flange Shape | ROUND FIRST OUTLET |
| Inlet Connection Type | FLANGE SINGLE INLET |
| Body Shape | ROUND |
| Inlet Flange Mounting Provision and Quantity | 12 HOLES SINGLE INLET |
| Outlet Flange Mounting Hole Diameter | 0.078 INCHES NOMINAL FIRST OUTLET IN |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Connection Type | FLANGE 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 |
NSN 2990-01-391-8339 is a Muffler,exhaust, manufactured by Burgess Manning, Inc. Dba Skimovex Usa, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-391-8339 has 2 manufacturer part numbers on file: 44-159-9 (Burgess Manning, Inc. Dba Skimovex Usa), ACA-10 (Burgess Manning, Inc. Dba Skimovex Usa).
Key specifications for 44-159-9: Inlet Flange Shape: ROUND SINGLE INLET; Operating Position: UNIVERSAL; Coolant Type: AIR; Outlet Flange Mounting Provision and Quantity: 12 HOLES FIRST OUTLET. 14 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.