The Pneumatic Muffler,exhaust-Intake, cataloged under National Stock Number 4330-01-449-1063, is classified within Federal Supply Class 4330 (Centrifugals, Separators, and Pressure and Vacuum Filters) of the Pumps and Compressors group. The manufacturer of record is Parker Hannifin Corp. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-01-449-1063 |
| Primary Part Number | 9955-11-DX |
| Item Name | Pneumatic Muffler,exhaust-Intake |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Parker Hannifin Corp |
| Status | ACTIVE |
| Outlet Connection Quantity | 1 |
| Inlet Location | AT THE BOTTOM OF BODY IN THE CENTER |
| Overall Diameter | 1.400 INCHES NOMINAL IN |
| Inlet Thread Location | EXTERNAL LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Outside Diameter | 0.250 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Outlet Flange Shape | ROUND LOCATION NOT OTHERWISE SPECIFIED |
| Inlet Connection Type | THREADED LOCATION NOT OTHERWISE SPECIFIED |
| Body Shape | ROUND |
| Inlet Thread Size | 1/4 LOCATION NOT OTHERWISE SPECIFIED |
| Inlet Thread Series Designator | NPT LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Location | ON THE RIGHT SIDE AT THE BOTTOM |
| 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 |
|---|---|
| 9955-11-DX PRIMARY | Parker Hannifin Corp (USA) |
NSN 4330-01-449-1063 is a Pneumatic Muffler,exhaust-Intake, manufactured by Parker Hannifin Corp, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-01-449-1063 has 1 manufacturer part number on file: 9955-11-DX (Parker Hannifin Corp).
Key specifications for 9955-11-DX: Outlet Connection Quantity: 1; Inlet Location: AT THE BOTTOM OF BODY IN THE CENTER; Overall Diameter: 1.400 INCHES NOMINAL IN; Inlet Thread Location: EXTERNAL LOCATION NOT OTHERWISE SPECIFIED. 11 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.