The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-079-3320, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Cummins 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-079-3320 |
| Primary Part Number | 3013811 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Supplementary Features | ADDITIONAL MATERIAL: CLOTH |
| Style Designator | FLAT |
| Material Thickness | 0.021 INCHES NOMINAL IN |
| Bolt Hole Quantity | 3 |
| Center Hole Diameter | 0.875 INCHES NOMINAL IN |
| Material | RUBBER |
| Hole Diameter | 0.297 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 |
|---|---|
| 3013811 PRIMARY | Cummins Inc. (USA) |
| Reference | Meaning |
|---|---|
| 10050722 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 4820-01-079-3320 is a Diaphragm,valve,flat, manufactured by Cummins Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-079-3320 has 1 manufacturer part number on file: 3013811 (Cummins Inc.).
Key specifications for 3013811: Supplementary Features: ADDITIONAL MATERIAL: CLOTH; Style Designator: FLAT; Material Thickness: 0.021 INCHES NOMINAL IN; Bolt Hole Quantity: 3. 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.