The Valve,butterfly, cataloged under National Stock Number 4820-01-425-4227, 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 6 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-425-4227 |
| Primary Part Number | 10IN M3011-222A-1J |
| Item Name | Valve,butterfly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dover Resources, Inc. Div Norriseal |
| Status | ACTIVE |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material | IRON BODY |
| Material | STEEL COMP 316 SEAT |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | STEEL CORROSION RESISTING STEM |
| 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 |
|---|---|
| 10IN M3011-222A-1J | Cooper Cameron Corp Cooper Cameron Valves Div (USA) |
| 10IN M3011-222A-1J PRIMARY | Dover Resources, Inc. Div Norriseal (USA) |
| 980-012 | Dover Resources, Inc. Div Norriseal (USA) |
| Reference | Meaning |
|---|---|
| 10IN M3011-222A-1J | 5/9 Secondary reference U.S. Government activity |
| 980-012 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-425-4227 is a Valve,butterfly, manufactured by Dover Resources, Inc. Div Norriseal, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-425-4227 has 3 manufacturer part numbers on file: 10IN M3011-222A-1J (Cooper Cameron Corp Cooper Cameron Valves Div), 10IN M3011-222A-1J (Dover Resources, Inc. Div Norriseal), 980-012 (Dover Resources, Inc. Div Norriseal).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-425-8092, 1730-01-667-5102, 3940-01-671-7117. Verify interchangeability with system specifications before substitution.
Key specifications for 10IN M3011-222A-1J: Style Designator: STRAIGHT THRU; Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Material: IRON BODY; Material: STEEL COMP 316 SEAT. 6 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.