The Muffler,exhaust, cataloged under National Stock Number 2990-00-109-6964, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (CAGE 30003); Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (CAGE 10001); Burgess Manning, Inc. Dba Skimovex Usa (CAGE 00743) |
| Parameter | Value |
|---|---|
| NSN | 2990-00-109-6964 |
| Primary Part Number | 64A98C741-1 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 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 |
|---|---|
| 64A98C741-1 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 4F37C1 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 4F37C1 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 5100-3602-1 PRIMARY | Burgess Manning, Inc. Dba Skimovex Usa (USA) |
| Reference | Meaning |
|---|---|
| 64A98C741-1 | 5/9 Secondary reference Gse Production and Support Llc Dba Gse Spares |
| 64A98C741-1 | 5/9 Secondary reference U.S. Government activity |
NSN 2990-00-109-6964 is a Muffler,exhaust, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-00-109-6964 has 4 manufacturer part numbers on file: 64A98C741-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 4F37C1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 4F37C1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 5100-3602-1 (Burgess Manning, Inc. Dba Skimovex Usa).
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.