The Valve,check, cataloged under National Stock Number 4820-01-413-9596, 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 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-413-9596 |
| Primary Part Number | 8-1750WSG |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Robert H Wager Co Inc |
| Status | ACTIVE |
| Flow Control Device | BALL |
| Connection Style | BEVELED (TUBE) ALL ENDS |
| Mounting Position | VERTICAL |
| Connection Type | BUTT WELD TUBE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Nominal Outside Diameter Tube Accommodated | 8.000 INCHES ALL ENDS IN |
| Disk Loading Method | SPRING |
| Surface Treatment | ZINC |
| Material | STEEL BODY |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| 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 |
|---|---|
| 1750WSG 8IN | Robert H Wager Co Inc (USA) |
| 8-1750WSG PRIMARY | Robert H Wager Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 8-1750WSB | C/1 Advisory reference — outside the item-of-supply concept Robert H Wager Co Inc |
NSN 4820-01-413-9596 is a Valve,check, manufactured by Robert H Wager Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-413-9596 has 2 manufacturer part numbers on file: 1750WSG 8IN (Robert H Wager Co Inc), 8-1750WSG (Robert H Wager Co Inc).
Key specifications for 8-1750WSG: Flow Control Device: BALL; Connection Style: BEVELED (TUBE) ALL ENDS; Mounting Position: VERTICAL; Connection Type: BUTT WELD TUBE ALL ENDS. 11 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.