The Muffler,exhaust, cataloged under National Stock Number 2990-01-046-4847, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Donaldson Company, Inc.. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 — Miscellaneous Engine Accessories, Nonaircraft (FSG 29) |
| Manufacturers | Brighton Cromwell Llc (CAGE 3NNX8); Donaldson Company, Inc. (CAGE 18265); Cummins Filtration Inc. (CAGE 76700) |
| Parameter | Value |
|---|---|
| NSN | 2990-01-046-4847 |
| Primary Part Number | MTM10-0038 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Donaldson Company, Inc. |
| Status | ACTIVE |
| 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 |
|---|---|
| ABT86112 | Brighton Cromwell Llc (USA) |
| MTM10-0038 PRIMARY | Donaldson Company, Inc. (USA) |
| 86112M | Cummins Filtration Inc. (USA) |
| Reference | Meaning |
|---|---|
| ABT86112 | 5/9 Secondary reference Ar Bee Corp |
| 433665C1 | 5/9 Secondary reference U.S. Government activity |
| 433665C1 | 5/9 Secondary reference U.S. Government activity |
| 8G130M | 5/9 Secondary reference Cummins Filtration Inc. |
| 86112 | D/9 Drawing number reference only Cummins Filtration Inc. |
| U-86112 | 5/9 Secondary reference Cummins Filtration Inc. |
| 433665C1 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
NSN 2990-01-046-4847 is a Muffler,exhaust, manufactured by Donaldson Company, Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-046-4847 has 3 manufacturer part numbers on file: ABT86112 (Brighton Cromwell Llc), MTM10-0038 (Donaldson Company, Inc.), 86112M (Cummins Filtration Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 6680-01-249-9183, 5935-01-390-3742. Verify interchangeability with system specifications before substitution.
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.