The Muffler,exhaust, cataloged under National Stock Number 2990-01-134-3459, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is W.w. Grainger, Inc. Div Government Sales Division. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 — Miscellaneous Engine Accessories, Nonaircraft (FSG 29) |
| Manufacturers | W.w. Grainger, Inc. Div Government Sales Division (CAGE 25795) |
| Parameter | Value |
|---|---|
| NSN | 2990-01-134-3459 |
| Primary Part Number | 33K394 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | W.w. Grainger, Inc. Div Government Sales Division |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 33K394 | W.w. Grainger, Inc. Div Government Sales Division (USA) |
| Reference | Meaning |
|---|---|
| 012-9204 | 3/9 Design control — primary reference W.w. Grainger, Inc. Div Government Sales Division |
| AC995 | 5/9 Secondary reference W.w. Grainger, Inc. Div Government Sales Division |
NSN 2990-01-134-3459 is a Muffler,exhaust, manufactured by W.w. Grainger, Inc. Div Government Sales Division, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-134-3459 has 1 manufacturer part number on file: 33K394 (W.w. Grainger, Inc. Div Government Sales Division).
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.