The Muffler,exhaust, cataloged under National Stock Number 2990-01-082-1523, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Walker Mfg Co. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 2990-01-082-1523 |
| Primary Part Number | 22071 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Walker Mfg Co |
| Status | ACTIVE |
| Design Type | DRY |
| Body Shape | RECTANGULAR |
| Surface Treatment | ALUMINUM |
| Material | STEEL 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 |
|---|---|
| 22071 PRIMARY | Walker Mfg Co (USA) |
| Reference | Meaning |
|---|---|
| 3233133 | 5/9 Secondary reference U.S. Government activity |
| J3233133 | 3/2 Design control — primary reference U.S. Government activity |
| 3233133 | 5/9 Secondary reference Kenosha Automotive Plant Sub of American Motors Corp |
NSN 2990-01-082-1523 is a Muffler,exhaust, manufactured by Walker Mfg Co, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-082-1523 has 1 manufacturer part number on file: 22071 (Walker Mfg Co).
2 possible matches (shared part number, not a government interchangeability claim): 6625-01-459-8451, 6515-01-595-3975. Verify interchangeability with system specifications before substitution.
Key specifications for 22071: Overall Height: 4.060 INCHES NOMINAL IN; Design Type: DRY; Overall Length: 20.000 INCHES NOMINAL IN; Overall Width: 10.500 INCHES NOMINAL IN. 4 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.