The Muffler,exhaust, cataloged under National Stock Number 2990-01-396-1972, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Briggs and Stratton Corp. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 — Miscellaneous Engine Accessories, Nonaircraft (FSG 29) |
| Manufacturers | Briggs and Stratton Corp (CAGE 08645); Mic Industries Inc Dba Mic Industries Inc Div Main (CAGE 0LFK3) |
| Parameter | Value |
|---|---|
| NSN | 2990-01-396-1972 |
| Primary Part Number | 491307 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Briggs and Stratton Corp |
| 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 |
NSN 2990-01-396-1972 is a Muffler,exhaust, manufactured by Briggs and Stratton Corp, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-396-1972 has 2 manufacturer part numbers on file: 491307 (Briggs and Stratton Corp), 491307 (Mic Industries Inc Dba Mic Industries Inc Div Main).
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.