The Pneumatic Muffler,exhaust-Intake, cataloged under National Stock Number 4310-01-446-5274, 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 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4310-01-446-5274 |
| Primary Part Number | AH190 |
| Item Name | Pneumatic Muffler,exhaust-Intake |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Gast Mfg Corp |
| Status | ACTIVE |
| Design Type | DRY |
| Inlet Connection Quantity | 1 |
| Inlet Connection Type | THREADED LOCATION NOT OTHERWISE SPECIFIED |
| Inlet Thread Size | 1/4-18 LOCATION NOT OTHERWISE SPECIFIED |
| Inlet Thread Series Designator | NPT LOCATION NOT OTHERWISE SPECIFIED |
| Material | PLASTIC 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 |
|---|---|
| AH190 PRIMARY | Gast Mfg Corp (USA) |
| Reference | Meaning |
|---|---|
| 40794-01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4310-01-446-5274 is a Pneumatic Muffler,exhaust-Intake, manufactured by Gast Mfg Corp, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-446-5274 has 1 manufacturer part number on file: AH190 (Gast Mfg Corp).
Key specifications for AH190: Design Type: DRY; Inlet Connection Quantity: 1; Inlet Connection Type: THREADED LOCATION NOT OTHERWISE SPECIFIED; Inlet Thread Size: 1/4-18 LOCATION NOT OTHERWISE SPECIFIED. 6 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.