The Gear Operator,valve, cataloged under National Stock Number 4820-01-425-3727, 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 3 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-425-3727 |
| Primary Part Number | 58760E001 |
| Item Name | Gear Operator,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dover Resources, Inc. Div Norriseal |
| Status | ACTIVE |
| Valve Type for Which Designed | BUTTERFLY |
| Valve Size for Which Designed | 10.000 INCHES IN |
| Material | STEEL |
| 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 |
|---|---|
| 58760E001 | Dover Resources, Inc. Div Norriseal (USA) |
| 980-012 IT20 | Dover Resources, Inc. Div Norriseal (USA) |
| Reference | Meaning |
|---|---|
| 58760E001 | 3/9 Design control — primary reference U.S. Government activity |
| 980-012 IT20 | 5/9 Secondary reference U.S. Government activity |
| 58760E001 | 5/9 Secondary reference Cooper Cameron Corp Cooper Cameron Valves Div |
| 980-012 | D/9 Drawing number reference only U.S. Government activity |
NSN 4820-01-425-3727 is a Gear Operator,valve, manufactured by Dover Resources, Inc. Div Norriseal, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-425-3727 has 2 manufacturer part numbers on file: 58760E001 (Dover Resources, Inc. Div Norriseal), 980-012 IT20 (Dover Resources, Inc. Div Norriseal).
4 possible matches (shared part number, not a government interchangeability claim): 4820-01-425-4227, 4820-01-425-8092, 1730-01-667-5102. Verify interchangeability with system specifications before substitution.
Key specifications for 58760E001: Valve Type for Which Designed: BUTTERFLY; Valve Size for Which Designed: 10.000 INCHES IN; Special Features: NORRIS VALVE ASSEMBLY AND B.O.M. DRAWING 10IN M3011-222A-1J TOPWORKS A; End Item Identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS. 3 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.