The Valve Assembly, cataloged under National Stock Number 4820-01-440-2157, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Aalberts Integrated Piping Systems Americas, Inc.. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-440-2157 |
| Primary Part Number | 40-204-T2 |
| Item Name | Valve Assembly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Aalberts Integrated Piping Systems Americas, Inc. |
| Status | ACTIVE |
| Valve Quantity | 9 |
| Maximum Operating Temp and Media for Which Designed | 180.0 FAHRENHEIT WATER DEGF |
| Connection Type | THREADED INTERNAL PIPE |
| End Connection Quantity | 2 |
| Nominal Thread Size | 0.750 INCHES IN |
| Body Material | COPPER ALLOY |
| Valve Operation Method | AUTOMATIC AND MANUAL |
| 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 |
|---|---|
| 40-204-T2 PRIMARY | Aalberts Integrated Piping Systems Americas, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 40-204-A2 | 3/9 Design control — primary reference Aalberts Integrated Piping Systems Americas, Inc. |
NSN 4820-01-440-2157 is a Valve Assembly, manufactured by Aalberts Integrated Piping Systems Americas, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-440-2157 has 1 manufacturer part number on file: 40-204-T2 (Aalberts Integrated Piping Systems Americas, Inc.).
Key specifications for 40-204-T2: Valve Quantity: 9; Maximum Operating Temp and Media for Which Designed: 180.0 FAHRENHEIT WATER DEGF; Connection Type: THREADED INTERNAL PIPE; End Connection Quantity: 2. 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.