The Valve,vent-Check, cataloged under National Stock Number 4820-01-510-5802, 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 5 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-510-5802 |
| Primary Part Number | 6-1600WSS-M |
| Item Name | Valve,vent-Check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Robert H Wager Co Inc |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 6.000 INCHES FIRST END IN |
| Connection Type | BUTT WELD PIPE FIRST END |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Material | STEEL CORROSION RESISTING BODY |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 6-1600WSS-M PRIMARY | Robert H Wager Co Inc (USA) |
NSN 4820-01-510-5802 is a Valve,vent-Check, manufactured by Robert H Wager Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-510-5802 has 1 manufacturer part number on file: 6-1600WSS-M (Robert H Wager Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 2040-01-510-7240. Verify interchangeability with system specifications before substitution.
Key specifications for 6-1600WSS-M: Nominal Pipe Size Accommodated: 6.000 INCHES FIRST END IN; Connection Type: BUTT WELD PIPE FIRST END; Special Features: DOES NOT INCLUDE FLOAT OR COVER. USE ONLY IN LOCATION NOT ACCESSIBLE TO SEA WATER; Media for Which Designed: AIR SINGLE RESPONSE. 5 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.