The Pneumatic Muffler,exhaust-Intake, cataloged under National Stock Number 4310-01-366-7300, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Gast Mfg Corp. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-366-7300 |
| Primary Part Number | AV527 |
| Item Name | Pneumatic Muffler,exhaust-Intake |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Gast Mfg Corp |
| Status | ACTIVE |
| Inlet Outside Diameter | 0.563 INCHES NOMINAL SINGLE INLET IN |
| Outlet Connection Quantity | 1 |
| Inlet Location | CENTRALLY LOCATED AT END SECTION OF BODY |
| Coolant Type | AIR |
| Design Type | DRY |
| Inlet Connection Quantity | 1 |
| Outlet Inside Diameter | 1.500 INCHES NOMINAL SINGLE INLET IN |
| Inlet Projection Length | 0.500 INCHES NOMINAL SINGLE INLET IN |
| Muffler Design | BAFFLE |
| Outlet Outside Diameter | 1.500 INCHES NOMINAL SINGLE INLET IN |
| Outlet Flange Shape | OVAL SINGLE INLET |
| Inlet Connection Type | UNTHREADED SINGLE INLET |
| Body Shape | IRREGULAR |
| Inlet Inside Diameter | 0.438 INCHES NOMINAL SINGLE INLET IN |
| Outlet Projection Length | 0.438 INCHES NOMINAL SINGLE INLET IN |
| Outlet Connection Type | UNTHREADED SINGLE INLET |
| Outlet Location | LOCATED AT 90.0DEG FOR INLET |
| 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 |
|---|---|
| AV527 PRIMARY | Gast Mfg Corp (USA) |
| Reference | Meaning |
|---|---|
| 6302451 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4310-01-366-7300 is a Pneumatic Muffler,exhaust-Intake, manufactured by Gast Mfg Corp, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-366-7300 has 1 manufacturer part number on file: AV527 (Gast Mfg Corp).
Key specifications for AV527: Inlet Outside Diameter: 0.563 INCHES NOMINAL SINGLE INLET IN; Outlet Connection Quantity: 1; Inlet Location: CENTRALLY LOCATED AT END SECTION OF BODY; Coolant Type: AIR. 17 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.