The Muffler,exhaust, cataloged under National Stock Number 2990-01-101-5432, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Nelson Global Products, Inc.. Government technical data includes 17 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-101-5432 |
| Primary Part Number | 16038N |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Nelson Global Products, Inc. |
| Status | ACTIVE |
| Operating Position | HORIZONTAL |
| Inlet Outside Diameter | 1.750 INCHES MINIMUM SINGLE INLET IN |
| Inlet Location | LOCATED ON HORIZONTAL CENTERLINE 5.000 IN. FROM END IN |
| Coolant Type | AIR |
| Design Type | DRY |
| Overall Diameter | 4.000 INCHES NOMINAL IN |
| Outlet Inside Diameter | 1.779 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Projection Length | 2.000 INCHES NOMINAL SINGLE INLET IN |
| Outlet Outside Diameter | 1.875 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Connection Type | UNTHREADED SINGLE INLET |
| Body Shape | ROUND |
| Surface Treatment | ALUMINUM ALLOY |
| Inlet Inside Diameter | 1.655 INCHES MINIMUM SINGLE INLET IN |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Projection Length | 2.000 INCHES NOMINAL FIRST OUTLET IN |
| Outlet Connection Type | UNTHREADED FIRST OUTLET |
| Outlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 16038N PRIMARY | Nelson Global Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 69676 | 5/9 Secondary reference Drs Environmental Systems Inc |
| 16038-N | 5/9 Secondary reference Cummins Filtration Inc. |
| 69676 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 69676 | 5/9 Secondary reference Davey Compressor Co Div of Keco Industries Inc |
NSN 2990-01-101-5432 is a Muffler,exhaust, manufactured by Nelson Global Products, Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-101-5432 has 1 manufacturer part number on file: 16038N (Nelson Global Products, Inc.).
Key specifications for 16038N: Operating Position: HORIZONTAL; Inlet Outside Diameter: 1.750 INCHES MINIMUM SINGLE INLET IN; Inlet Location: LOCATED ON HORIZONTAL CENTERLINE 5.000 IN. FROM END IN; Coolant Type: AIR. 17 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.
NSN 2990-01-101-5432 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.