The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-533-8330, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Metrex Valve Corp. Dba Metrex Valve Corp. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-00-533-8330 |
| Primary Part Number | NHPB11199REVCPC37-3 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Metrex Valve Corp. Dba Metrex Valve Corp |
| Status | ACTIVE |
| Outside Diameter | 7.600 INCHES NOMINAL IN |
| Style Designator | FLAT |
| Material Thickness | 0.130 INCHES NOMINAL IN |
| Bolt Hole Quantity | 20 |
| Bolt Circle Diameter | 7.000 INCHES NOMINAL IN |
| Center Hole Diameter | 0.750 INCHES NOMINAL IN |
| Material | RUBBER FABRIC REINFORCED |
| Hole Diameter | 0.355 INCHES NOMINAL 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 |
|---|---|
| NHPB11199REVCPC37-3 PRIMARY | Metrex Valve Corp. Dba Metrex Valve Corp (USA) |
| 5904-3136437REVCPC37-3 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| W3120-32-1 | 5/9 Secondary reference Metrex Valve Corp. Dba Metrex Valve Corp |
| 5904-3136437REVCPC37-3 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-533-8330 is a Diaphragm,valve,flat, manufactured by Metrex Valve Corp. Dba Metrex Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-533-8330 has 2 manufacturer part numbers on file: NHPB11199REVCPC37-3 (Metrex Valve Corp. Dba Metrex Valve Corp), 5904-3136437REVCPC37-3 (Naval Sea Systems Command).
Key specifications for NHPB11199REVCPC37-3: Outside Diameter: 7.600 INCHES NOMINAL IN; Style Designator: FLAT; Material Thickness: 0.130 INCHES NOMINAL IN; Bolt Hole Quantity: 20. 8 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.