The Valve,check, cataloged under National Stock Number 4820-01-196-7145, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-196-7145 |
| Primary Part Number | 1750-F 1 1/2IN CI |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Robert H Wager Co Inc |
| Status | ACTIVE |
| Flow Control Device | BALL |
| Flange Shape | ROUND WITH HOLES FIRST END |
| Bolt Circle Nominal Diameter | 3.875 INCHES FIRST END IN |
| Connection Type | FLANGE FIRST END |
| Bolt Hole Nominal Diameter | 0.625 INCHES FIRST END IN |
| Nominal Outside Diameter | 5.000 INCHES FIRST END IN |
| Bolt Hole Quantity | 4 FIRST END |
| Material | IRON CAST BODY |
| Valve Operation Method | AUTOMATIC |
| Nominal Thickness | 0.562 INCHES FIRST END IN |
| 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 |
|---|---|
| 1750-F 1 1/2IN CI PRIMARY | Robert H Wager Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 1750 1 1/2IN CI | C/1 Advisory reference — outside the item-of-supply concept Robert H Wager Co Inc |
NSN 4820-01-196-7145 is a Valve,check, manufactured by Robert H Wager Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-196-7145 has 1 manufacturer part number on file: 1750-F 1 1/2IN CI (Robert H Wager Co Inc).
Key specifications for 1750-F 1 1/2IN CI: Flow Control Device: BALL; Flange Shape: ROUND WITH HOLES FIRST END; Bolt Circle Nominal Diameter: 3.875 INCHES FIRST END IN; Connection Type: FLANGE 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.