The Muffler,intake, cataloged under National Stock Number 2990-01-574-6221, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Brp Us Inc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2990-01-574-6221 |
| Primary Part Number | 5007623 |
| Item Name | Muffler,intake |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Brp Us 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 |
|---|---|
| 5007623 PRIMARY | Brp Us Inc (USA) |
| Reference | Meaning |
|---|---|
| 5007513 | 5/9 Secondary reference Brp Us Inc |
NSN 2990-01-574-6221 is a Muffler,intake, manufactured by Brp Us Inc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-574-6221 has 1 manufacturer part number on file: 5007623 (Brp Us Inc).
1 possible match (shared part number, not a government interchangeability claim): 5306-01-694-4469. Verify interchangeability with system specifications before substitution.
Key specifications for 5007623: Special Features: ENGINE OUTBO. SSR NAME IS MUFFLER, INTAKE; Part Name Assigned by Controlling Agency: AIR SILENCER AND SEAL ASSEMBLY; End Item Identification: EVINRUDE ENG, OUTBRD, COUNTER ROTATION 175DCXSCR; EVINRUDE ENG, OUTBRD, STANDARD ROTATION 175DPXSCR. 0 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.