The Diaphragm,actuator Valve,special, cataloged under National Stock Number 4820-00-036-0806, 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 8 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-036-0806 |
| Primary Part Number | D25488 |
| Item Name | Diaphragm,actuator Valve,special |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hunt Valve Company, Inc. |
| Status | ACTIVE |
| Shank Diameter | 3.410 INCHES NOMINAL IN |
| Outside Diameter | 5.950 INCHES NOMINAL IN |
| Style Designator | SPECIAL SHAPED |
| Bolt Hole Quantity | 10 |
| Bolt Circle Diameter | 5.236 INCHES NOMINAL IN |
| Center Hole Diameter | 0.525 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC AND STEEL |
| Hole Diameter | 0.533 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 |
|---|---|
| D25488 PRIMARY | Hunt Valve Company, Inc. (USA) |
| D25448 PRIMARY | Hunt Valve Company, Inc. (USA) |
| D25448PC4-19 PRIMARY | Hunt Valve Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| D25448PC4-19 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| D25488 | 5/9 Secondary reference Hammel Dahl Inc |
| AA35899REVAPC4-19 | 5/9 Secondary reference Hammel Dahl Inc |
| D25448 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| 571-4903-1444463PC4-19 | 3/2 Design control — primary reference U.S. Government activity |
| AA35899REVAPC4-19 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| D25488 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| AA35896REVAPC4-19 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
| D25448 | 5/9 Secondary reference Hammel Dahl Inc |
| D25448PC4-19 | 5/9 Secondary reference Hammel Dahl Inc |
| AA35896REVAPC4-19 | 5/9 Secondary reference Hammel Dahl Inc |
| 575-4903-1444265REVAPC4-19 | 3/2 Design control — primary reference U.S. Government activity |
| 575-4903-1444268REVAPC4-19 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-00-036-0806 is a Diaphragm,actuator Valve,special, manufactured by Hunt Valve Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-036-0806 has 3 manufacturer part numbers on file: D25488 (Hunt Valve Company, Inc.), D25448 (Hunt Valve Company, Inc.), D25448PC4-19 (Hunt Valve Company, Inc.).
Key specifications for D25488: Shank Diameter: 3.410 INCHES NOMINAL IN; Overall Height: 0.419 INCHES NOMINAL IN; Outside Diameter: 5.950 INCHES NOMINAL IN; Style Designator: SPECIAL SHAPED. 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.