The Muffler,exhaust, cataloged under National Stock Number 2990-00-316-4933, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Naval Ship Systems Command. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 — No Item Name Available (FSG 29) |
| Manufacturers | Naval Ship Systems Command (CAGE 80064); Norfolk Naval Shipyard (CAGE 81601) |
| Parameter | Value |
|---|---|
| NSN | 2990-00-316-4933 |
| Primary Part Number | 14U1557PC4277 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Naval Ship Systems Command |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 14U1557PC4277 | Naval Ship Systems Command (USA) |
| 4277 | Norfolk Naval Shipyard (USA) |
NSN 2990-00-316-4933 is a Muffler,exhaust, manufactured by Naval Ship Systems Command, classified under FSC 2990 (No Item Name Available). Status: active.
NSN 2990-00-316-4933 has 2 cross-referenced part numbers: 14U1557PC4277 (Naval Ship Systems Command), 4277 (Norfolk Naval Shipyard).
There are 4 known substitutes for 2990-00-316-4933: 2040-00-183-5929, 5325-00-903-7567, 4240-01-469-0040 and 1 more. Verify interchangeability with system specifications before substitution.