The Pneumatic Muffler,exhaust-Intake, cataloged under National Stock Number 4310-01-503-3679, 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. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-503-3679 |
| Primary Part Number | 554-7068135-F2 |
| Item Name | Pneumatic Muffler,exhaust-Intake |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Overall Diameter | 6.000 INCHES NOMINAL IN |
| Body Shape | ROUND |
| Material | STEEL CORROSION RESISTING LOCATION NOT OTHERWISE SPECIFIED |
| 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 |
|---|---|
| 554-7068135-F2 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H765-1604-F2 | 5/2 Secondary reference U.S. Government activity |
| S-722-31-1 | 3/9 Design control — primary reference Beaird Industries Inc. |
NSN 4310-01-503-3679 is a Pneumatic Muffler,exhaust-Intake, manufactured by Naval Sea Systems Command, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-503-3679 has 1 manufacturer part number on file: 554-7068135-F2 (Naval Sea Systems Command).
Key specifications for 554-7068135-F2: Overall Diameter: 6.000 INCHES NOMINAL IN; Overall Length: 12.000 INCHES NOMINAL IN; Body Shape: ROUND; Special Features: WEIGHT: 16 LBS., POLYESTER WOOL ACOUSTICAL PACKING, 1/4 UNION INLET; NHA: PIPING HP AIR EMBT BLOW 2ND PLTF LBS. 3 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.
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.