The Disk,valve, cataloged under National Stock Number 4820-01-122-4127, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-122-4127 |
| Primary Part Number | 03460001128 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| Status | ACTIVE |
| Flange Diameter | 5.375 INCHES NOMINAL IN |
| Shoulder Height | 0.375 INCHES NOMINAL IN |
| Nominal Thread Size | 3.250 INCHES IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 14 |
| Material | NICKEL ALLOY |
| Thread Series Designator | UNS |
| 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 |
|---|---|
| 03460001128 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| B3460.001.128 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| Reference | Meaning |
|---|---|
| B3460.001.128 | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
NSN 4820-01-122-4127 is a Disk,valve, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-122-4127 has 2 manufacturer part numbers on file: 03460001128 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), B3460.001.128 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-199-9215. Verify interchangeability with system specifications before substitution.
Key specifications for 03460001128: Flange Diameter: 5.375 INCHES NOMINAL IN; Overall Height: 2.828 INCHES NOMINAL IN; Shoulder Height: 0.375 INCHES NOMINAL IN; Nominal Thread Size: 3.250 INCHES IN. 7 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.