The Valve,calibrated Flow, cataloged under National Stock Number 4820-01-520-9298, 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 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-520-9298 |
| Primary Part Number | 6323384-30 |
| 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 |
| Body Style | STRAIGHT THRU |
| Face to Face Distance | 4.340 INCHES NOMINAL IN |
| Regulation Type | AUTOMATIC SINGLE STAGE |
| First End Style Designator | EXTERNAL SEAT FOR GASKET SEAL |
| End Connection Quantity | 2 |
| Valve Size | 0.375 INCHES IN |
| First End Connection Type | UNTHREADED EXTERNAL TUBE |
| Surface Treatment | PASSIVATE OUTSIDE |
| First End Outside Diameter Tube Accommodated | 0.799 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING BODY |
| Maximum Inlet Pressure Rating | ERR-060 |
| End Connection Spec/std | MS33656E6 |
| Valve Discharge Flow Rate | 2.0 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 |
|---|---|
| 6323384-30 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| Q2360-06-14 | 3/2 Design control — primary reference U.S. Government activity |
| 8970-30 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-520-9298 is a Valve,calibrated Flow, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-520-9298 has 1 manufacturer part number on file: 6323384-30 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-552-1119. Verify interchangeability with system specifications before substitution.
Key specifications for 6323384-30: Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU; Face to Face Distance: 4.340 INCHES NOMINAL IN; Regulation Type: AUTOMATIC SINGLE STAGE. 14 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.