The Muffler,intake, cataloged under National Stock Number 2990-01-021-7587, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Donaldson Company, Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-021-7587 |
| Primary Part Number | MJM08-0047 |
| Item Name | Muffler,intake |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Donaldson Company, Inc. |
| Status | ACTIVE |
| Body Shape | OVAL |
| 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 |
|---|---|
| MJM08-0047 PRIMARY | Donaldson Company, Inc. (USA) |
| 4N7870 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 4N7870 | Hastings Deering (aust) Pty Ltd (AUS) |
| 4N7870 | William Adams Pty Ltd (AUS) |
| 4N7870 | Westrac Pty Ltd (AUS) |
NSN 2990-01-021-7587 is a Muffler,intake, manufactured by Donaldson Company, Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-021-7587 has 5 manufacturer part numbers on file: MJM08-0047 (Donaldson Company, Inc.), 4N7870 (Caterpillar Inc Div Caterpillar Defense), 4N7870 (Hastings Deering (aust) Pty Ltd), 4N7870 (William Adams Pty Ltd), 4N7870 (Westrac Pty Ltd).
Key specifications for MJM08-0047: Body Shape: OVAL. 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.