The Valve,butterfly, cataloged under National Stock Number 4820-01-196-7447, 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 17 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-196-7447 |
| Primary Part Number | 1002883 |
| Item Name | Valve,butterfly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dover Resources, Inc. Div Norriseal |
| Status | ACTIVE |
| Flange Shape | ROUND ALL ENDS |
| Furnished Items and Quantity | 1 HANDLE |
| Flange Face Design | PLAIN ALL ENDS |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 5.000 INCHES IN |
| Maximum Operating Temp | 180.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nominal Outside Diameter | 7.750 INCHES ALL ENDS IN |
| Mounting Facility | WAFER |
| Face to Face Distance | 5.250 INCHES IN |
| Material | STEEL BODY |
| Material | RUBBER SYNTHETIC PACKING |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Material | RUBBER SYNTHETIC SEAT |
| Valve Operation Method | MANUAL |
| Nominal Thickness | 2.130 INCHES ALL ENDS 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 |
|---|---|
| 1002883 PRIMARY | Dover Resources, Inc. Div Norriseal (USA) |
| Reference | Meaning |
|---|---|
| 910H168 | 5/9 Secondary reference U.S. Government activity |
| 5"R1020-64AA-1FM | 5/9 Secondary reference U.S. Government activity |
| 910-168-5IN | 3/9 Design control — primary reference U.S. Government activity |
| 910H168 | 5/9 Secondary reference Dover Resources, Inc. Div Norriseal |
| R1020-64AA-1FM 5IN | 5/9 Secondary reference U.S. Government activity |
| 910-168 | D/9 Drawing number reference only U.S. Government activity |
| 5"R1020-64AA-1FM | 5/9 Secondary reference Dover Resources, Inc. Div Norriseal |
NSN 4820-01-196-7447 is a Valve,butterfly, manufactured by Dover Resources, Inc. Div Norriseal, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-196-7447 has 1 manufacturer part number on file: 1002883 (Dover Resources, Inc. Div Norriseal).
Key specifications for 1002883: Flange Shape: ROUND ALL ENDS; Furnished Items and Quantity: 1 HANDLE; Flange Face Design: PLAIN ALL ENDS; Connection Type: FLANGE ALL ENDS. 17 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.