The Muffler,exhaust, cataloged under National Stock Number 2990-00-081-9798, 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 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-00-081-9798 |
| Primary Part Number | 5100-3688 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Burgess Manning, Inc. Dba Skimovex Usa |
| Status | ACTIVE |
| Operating Position | UNIVERSAL |
| Inlet Outside Diameter | 5.500 INCHES NOMINAL SINGLE INLET IN |
| Inlet Location | OFFSET ON END OF BODY |
| Coolant Type | AIR |
| Design Type | DRY |
| Inlet Projection Length | 2.000 INCHES NOMINAL SINGLE INLET IN |
| Outlet Outside Diameter | 5.000 INCHES NOMINAL FIRST OUTLET IN |
| Material | STEEL CORROSION RESISTING LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Projection Length | 2.000 INCHES NOMINAL FIRST OUTLET IN |
| Outlet Location | OFFSET ON END 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 |
| Part Number | Manufacturer |
|---|---|
| 5100-3688 PRIMARY | Burgess Manning, Inc. Dba Skimovex Usa (USA) |
| Reference | Meaning |
|---|---|
| E4 | 5/9 Secondary reference Uniflite Inc |
NSN 2990-00-081-9798 is a Muffler,exhaust, manufactured by Burgess Manning, Inc. Dba Skimovex Usa, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-00-081-9798 has 1 manufacturer part number on file: 5100-3688 (Burgess Manning, Inc. Dba Skimovex Usa).
Key specifications for 5100-3688: Operating Position: UNIVERSAL; Overall Height: 12.000 INCHES NOMINAL IN; Inlet Outside Diameter: 5.500 INCHES NOMINAL SINGLE INLET IN; Inlet Location: OFFSET ON END OF BODY. 10 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.