The Stem,fluid Valve, cataloged under National Stock Number 4820-01-440-4077, 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 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-440-4077 |
| Primary Part Number | D-2390-00 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Aalberts Integrated Piping Systems Americas, Inc. |
| Status | ACTIVE |
| Valve Type for Which Designed | RELIEF |
| Valve Model Number for Which Designed | 19-202-37 |
| Valve Size for Which Designed | 0.500 INCHES AND 0.750 INCHES IN |
| 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 |
|---|---|
| D-2390-00 PRIMARY | Aalberts Integrated Piping Systems Americas, Inc. (USA) |
| Reference | Meaning |
|---|---|
| D-2930-00 | C/1 Advisory reference — outside the item-of-supply concept Aalberts Integrated Piping Systems Americas, Inc. |
NSN 4820-01-440-4077 is a Stem,fluid Valve, manufactured by Aalberts Integrated Piping Systems Americas, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-440-4077 has 1 manufacturer part number on file: D-2390-00 (Aalberts Integrated Piping Systems Americas, Inc.).
Key specifications for D-2390-00: Valve Type for Which Designed: RELIEF; Valve Model Number for Which Designed: 19-202-37; Valve Size for Which Designed: 0.500 INCHES AND 0.750 INCHES IN. 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.