The Pipe,exhaust, cataloged under National Stock Number 2990-00-007-2299, 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 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 2990-00-007-2299 |
| Primary Part Number | 45301 |
| Item Name | Pipe,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Walker Mfg Co |
| Status | ACTIVE |
| Nominal Overall Length | 45.000 INCHES IN |
| Material | STEEL |
| 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 |
|---|---|
| 45301 PRIMARY | Walker Mfg Co (USA) |
| Reference | Meaning |
|---|---|
| E4-1113 | 5/9 Secondary reference Harvard Industries |
| 3186374 | 5/9 Secondary reference Kenosha Automotive Plant Sub of American Motors Corp |
| 9714-5 | 5/9 Secondary reference Walker Mfg Co |
NSN 2990-00-007-2299 is a Pipe,exhaust, manufactured by Walker Mfg Co, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-00-007-2299 has 1 manufacturer part number on file: 45301 (Walker Mfg Co).
3 possible matches (shared part number, not a government interchangeability claim): 2825-00-388-6877, 5845-00-860-1101, 5977-01-431-3568. Verify interchangeability with system specifications before substitution.
Key specifications for 45301: Nominal Overall Length: 45.000 INCHES IN; Material: STEEL. 2 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.