The Valve,vent, cataloged under National Stock Number 4820-01-428-3177, 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 10 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 | 4820-01-428-3177 |
| Primary Part Number | 1600W-3IN |
| Item Name | Valve,vent |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Robert H Wager Co Inc |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 CAP AND 1 FILTER SCREEN |
| Nominal Pipe Size Accommodated | 3.000 INCHES ALL ENDS IN |
| Connection Style | PLAIN (TUBE) ALL ENDS |
| Connection Style | PLAIN (TUBE) FIRST END |
| Connection Type | BUTT WELD PIPE FIRST END |
| Connection Type | BUTT WELD PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Surface Treatment | ZINC |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| 1600W-3IN PRIMARY | Robert H Wager Co Inc (USA) |
NSN 4820-01-428-3177 is a Valve,vent, manufactured by Robert H Wager Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-428-3177 has 1 manufacturer part number on file: 1600W-3IN (Robert H Wager Co Inc).
Key specifications for 1600W-3IN: Furnished Items and Quantity: 1 CAP AND 1 FILTER SCREEN; Nominal Pipe Size Accommodated: 3.000 INCHES ALL ENDS IN; Connection Style: PLAIN (TUBE) ALL ENDS; Connection Style: PLAIN (TUBE) FIRST END. 10 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.