The Vent Silencer, cataloged under National Stock Number 4310-01-496-9494, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Naval Sea Systems Command. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-496-9494 |
| Primary Part Number | 211033704 |
| Item Name | Vent Silencer |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 211033704 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 9447-00-0000-500 | 5/9 Secondary reference U.S. Government activity |
| 9447-01-0000-50 | 5/1 Secondary reference U.S. Government activity |
| 9447010000500 | 3/2 Design control — primary reference U.S. Government activity |
| 9447-00-0000-500 | 5/2 Secondary reference U.S. Government activity |
NSN 4310-01-496-9494 is a Vent Silencer, manufactured by Naval Sea Systems Command, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-496-9494 has 1 manufacturer part number on file: 211033704 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-503-6561. Verify interchangeability with system specifications before substitution.
Key specifications for 211033704: Special Features: FLOW OF 728 SCFM MIN. AT 87 PSIG INLET/0 PSIG OUTLET; Part Name Assigned by Controlling Agency: ARCTIC BLOW VENT SILENCER, FORWARD OF BOAT; End Item Identification: SEAWOLF CLASS SUB. 0 specifications are 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.
NSN 4310-01-496-9494 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.