The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-036-0664, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hunt Valve Company, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-036-0664 |
| Primary Part Number | D22518DE |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hunt Valve Company, Inc. |
| Status | ACTIVE |
| Outside Diameter | 6.000 INCHES NOMINAL IN |
| Style Designator | FLAT |
| Material Thickness | 0.008 INCHES NOMINAL IN |
| Bolt Hole Quantity | 8 |
| Bolt Circle Diameter | 5.125 INCHES NOMINAL IN |
| Material | COPPER |
| Hole Diameter | 0.515 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 |
|---|---|
| D22518DE PRIMARY | Hunt Valve Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| D22518DE | 3/9 Design control — primary reference Hunt Valve Company Inc Dba Union Flonetics |
| D22518DE | 5/9 Secondary reference Hammel Dahl Inc |
NSN 4820-00-036-0664 is a Diaphragm,valve,flat, manufactured by Hunt Valve Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-036-0664 has 1 manufacturer part number on file: D22518DE (Hunt Valve Company, Inc.).
Key specifications for D22518DE: Outside Diameter: 6.000 INCHES NOMINAL IN; Style Designator: FLAT; Material Thickness: 0.008 INCHES NOMINAL IN; Bolt Hole Quantity: 8. 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.