The Valve,vent, cataloged under National Stock Number 4820-01-342-8941, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Robert H Wager Co Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-342-8941 |
| Primary Part Number | 4-1500FAA-1 |
| Item Name | Valve,vent |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Robert H Wager Co Inc |
| Status | ACTIVE |
| Connection Type | FLANGE ALL ENDS |
| Material | ALUMINUM BODY |
| 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 |
|---|---|
| 4-1500FAA-1 PRIMARY | Robert H Wager Co Inc (USA) |
| Reference | Meaning |
|---|---|
| VVC-501-4IN | 5/9 Secondary reference Haywardindl. Products, Inc. |
| VC501040AF85A | 5/9 Secondary reference Haywardindl. Products, Inc. |
| G48701-A-4" | 5/9 Secondary reference North Star Marine and Industrial Products |
| VC501040AF8PA | 5/9 Secondary reference Haywardindl. Products, Inc. |
NSN 4820-01-342-8941 is a Valve,vent, manufactured by Robert H Wager Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-342-8941 has 1 manufacturer part number on file: 4-1500FAA-1 (Robert H Wager Co Inc).
Key specifications for 4-1500FAA-1: Connection Type: FLANGE ALL ENDS; End Item Identification: VENTILATION SYSTEM ONBOARD 110 FT WPB COAST GUARD VESSELSVENTILATION SYSTEM ONBOARD 110 FT WPB COAST GUARD VESSELS FT; Material: ALUMINUM BODY. 2 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.