The Muffler,exhaust, cataloged under National Stock Number 2990-01-484-2939, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Norgren Llc. Government technical data includes 1 specification, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-484-2939 |
| Primary Part Number | MB008A |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Norgren Llc |
| Status | ACTIVE |
| Overall Diameter | 2.000 INCHES NOMINAL IN |
| 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 |
|---|---|
| MB008A PRIMARY | Norgren Llc (USA) |
NSN 2990-01-484-2939 is a Muffler,exhaust, manufactured by Norgren Llc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-484-2939 has 1 manufacturer part number on file: MB008A (Norgren Llc).
Key specifications for MB008A: Overall Diameter: 2.000 INCHES NOMINAL IN; Overall Length: 5.430 INCHES NOMINAL IN; Special Features: MALE THREAD; PORT SIZE 1" NPT; End Item Identification: WINCH,DRUM,POWER OPERATED,3950-01-471-6561 ABOARD 160 FT "A" AND "B" WLIC AND 75 FT WLIC COAST GUARD VESSELS FT. 1 specification is 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.