The Muffler,exhaust, cataloged under National Stock Number 2990-01-200-9673, 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 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-200-9673 |
| Primary Part Number | 18785-N |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Cummins Filtration Inc. |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING LOCATION NOT OTHERWISE SPECIFIED |
| 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 |
|---|---|
| 18785-N PRIMARY | Cummins Filtration Inc. (USA) |
| 40-0005004 PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| DIU06-0527 PRIMARY | Donaldson Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 40-0005004 | 5/9 Secondary reference Hercules Engine Co Inc |
NSN 2990-01-200-9673 is a Muffler,exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-200-9673 has 3 manufacturer part numbers on file: 18785-N (Cummins Filtration Inc.), 40-0005004 (Brinkley Technology Group Llc Dba Hercules Manufacturing), DIU06-0527 (Donaldson Company, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 6130-01-328-6490. Verify interchangeability with system specifications before substitution.
Key specifications for 18785-N: End Item Identification: USE ON(TWDS) TACTICAL WATER DISTRIBUTION SYSTEM-NSN 4320-01-122-3547; Material: STEEL CORROSION RESISTING LOCATION NOT OTHERWISE SPECIFIED. 1 specification is 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.