The Valve,butterfly, cataloged under National Stock Number 4820-01-119-3719, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dover Resources, Inc. Div Norriseal. Government technical data includes 16 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-119-3719 |
| Primary Part Number | 3IN R2030-44AA-1A |
| Item Name | Valve,butterfly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dover Resources, Inc. Div Norriseal |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HANDLE |
| Renewable Seat Ring Type | PRESSED-IN |
| Minimum Operating Temp | -30.0 FAHRENHEIT DEGF |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 3.000 INCHES IN |
| Maximum Operating Temp | 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Mounting Facility | WAFER |
| Media for Which Designed | WATER, FRESH SECOND RESPONSE |
| Media for Which Designed | WATER, SALT FIRST RESPONSE |
| Material | RUBBER SYNTHETIC PACKING |
| Material | COPPER ALLOY 922 BODY |
| Material | NICKEL ALLOY 400 STEM |
| Material | RUBBER SYNTHETIC SEAT |
| Material | COPPER ALLOY 954 FLOW CONTROL DEVICE |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| 3IN R2030-44AA-1A PRIMARY | Dover Resources, Inc. Div Norriseal (USA) |
| Reference | Meaning |
|---|---|
| R2030-44AA-1A | 5/9 Secondary reference U.S. Government activity |
| 3" R2030-44AA-1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 3IN R2030-44AA-1A | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-119-3719 is a Valve,butterfly, manufactured by Dover Resources, Inc. Div Norriseal, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-119-3719 has 1 manufacturer part number on file: 3IN R2030-44AA-1A (Dover Resources, Inc. Div Norriseal).
Key specifications for 3IN R2030-44AA-1A: Furnished Items and Quantity: 1 HANDLE; Renewable Seat Ring Type: PRESSED-IN; Minimum Operating Temp: -30.0 FAHRENHEIT DEGF; Style Designator: STRAIGHT THRU. 16 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.