The Valve,calibrated Flow, cataloged under National Stock Number 4820-01-525-4331, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-525-4331 |
| Primary Part Number | 6323384 (SOURCE CONTROL DRWG) |
| Item Name | Valve,calibrated Flow |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Second End Relationship with First End | IDENTICAL |
| First End Style Designator | FLARED |
| End Connection Quantity | 2 |
| First End Connection Type | THREADED EXTERNAL TUBE |
| First End Outside Diameter Tube Accommodated | 0.375 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING BODY |
| Valve Discharge Flow Rate | 4.2 IMPERIAL GALLONS PER MINUTE |
| 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 |
|---|---|
| 6323384 (SOURCE CONTROL DRWG) | Naval Sea Systems Command (USA) |
| 6323384-27 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 8970-27 | 5/2 Secondary reference U.S. Government activity |
| 02360-06-11 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-525-4331 is a Valve,calibrated Flow, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-525-4331 has 2 manufacturer part numbers on file: 6323384 (SOURCE CONTROL DRWG) (Naval Sea Systems Command), 6323384-27 (Naval Sea Systems Command).
Key specifications for 6323384 (SOURCE CONTROL DRWG): Second End Relationship with First End: IDENTICAL; First End Style Designator: FLARED; End Connection Quantity: 2; First End Connection Type: THREADED EXTERNAL TUBE. 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.