The Arrester,spark Exhaust, cataloged under National Stock Number 2990-00-161-7746, 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 16 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-00-161-7746 |
| Primary Part Number | 49125 |
| Item Name | Arrester,spark Exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Cummins Filtration Inc. |
| Status | ACTIVE |
| Operating Position | UNIVERSAL |
| Inlet Outside Diameter | 2.635 INCHES NOMINAL IN |
| Inlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| Overall Diameter | 8.000 INCHES NOMINAL IN |
| Outlet Inside Diameter | 2.500 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Inlet Projection Length | 3.000 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Outlet Outside Diameter | 2.635 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Inlet Connection Type | UNTHREADED LOCATION NOT OTHERWISE SPECIFIED |
| Body Shape | ROUND |
| Surface Treatment | PASSIVATE |
| Inlet Inside Diameter | 2.500 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Material | STEEL CORROSION RESISTING |
| Outlet Projection Length | 3.000 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Device Design Type | BAFFLE |
| Outlet Connection Type | UNTHREADED LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Location | CENTRALLY LOCATED IN END SECTION 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 |
|---|---|
| T-49125 | Cummins Filtration Inc. (USA) |
| ABT49125 | Brighton Cromwell Llc (USA) |
| 49125 PRIMARY | Cummins Filtration Inc. (USA) |
| Reference | Meaning |
|---|---|
| ABT49125 | 5/9 Secondary reference Ar Bee Corp |
| 49125-A | C/1 Advisory reference — outside the item-of-supply concept Cummins Filtration Inc. |
| SA250 | 5/9 Secondary reference Riker Products |
NSN 2990-00-161-7746 is a Arrester,spark Exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-00-161-7746 has 3 manufacturer part numbers on file: T-49125 (Cummins Filtration Inc.), ABT49125 (Brighton Cromwell Llc), 49125 (Cummins Filtration Inc.).
5 possible matches (shared part number, not a government interchangeability claim): 5935-00-259-7458, 5330-01-194-4844, 6130-01-348-9569. Verify interchangeability with system specifications before substitution.
Key specifications for 49125: Operating Position: UNIVERSAL; Inlet Outside Diameter: 2.635 INCHES NOMINAL IN; Inlet Location: CENTRALLY LOCATED IN END SECTION OF BODY; Overall Diameter: 8.000 INCHES NOMINAL IN. 16 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.