The Pneumatic Muffler,exhaust-Intake, cataloged under National Stock Number 4310-01-504-8221, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-504-8221 |
| Primary Part Number | 512-7067266-F72 |
| Item Name | Pneumatic Muffler,exhaust-Intake |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Overall Diameter | 15.500 INCHES NOMINAL IN |
| Muffler Design | STRAIGHT THROUGH |
| Body Shape | ROUND |
| 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 |
|---|---|
| 512-7067266-F72 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 512-7067266 | D/9 Drawing number reference only Naval Sea Systems Command |
| H643-2110-F72 | 5/2 Secondary reference U.S. Government activity |
| H643-2110 | D/9 Drawing number reference only U.S. Government activity |
NSN 4310-01-504-8221 is a Pneumatic Muffler,exhaust-Intake, manufactured by Naval Sea Systems Command, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-504-8221 has 1 manufacturer part number on file: 512-7067266-F72 (Naval Sea Systems Command).
Key specifications for 512-7067266-F72: Overall Diameter: 15.500 INCHES NOMINAL IN; Overall Length: 36.000 INCHES NOMINAL IN; Muffler Design: STRAIGHT THROUGH; Body Shape: ROUND. 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.
NSN 4310-01-504-8221 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.