The Machined Top Castin, cataloged under National Stock Number 4820-01-344-8665, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Machined Top Castin |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (CAGE 41387) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-344-8665 |
| Primary Part Number | 2155-85 |
| Item Name | Machined Top Castin |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 2155-85 PRIMARY | Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA) |
NSN 4820-01-344-8665 is a Machined Top Castin, manufactured by Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-344-8665 has 1 manufacturer part number on file: 2155-85 (Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives).
1 possible match (shared part number, not a government interchangeability claim): 5365-01-606-6394. Verify interchangeability with system specifications before substitution.
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.