The Diaphragm,actuator Valve,special, cataloged under National Stock Number 4820-00-400-5154, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Coyne & Delany Company Dba Delany Products Div Delany Products. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-00-400-5154 |
| Primary Part Number | F141U |
| Item Name | Diaphragm,actuator Valve,special |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Coyne & Delany Company Dba Delany Products Div Delany Products |
| Status | ACTIVE |
| Outside Diameter | 2.750 INCHES NOMINAL IN |
| Style Designator | SPECIAL SHAPED |
| Center Hole Diameter | 0.625 INCHES NOMINAL IN |
| Media for Which Designed | WATER |
| Material | LEATHER |
| 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 |
|---|---|
| F141U PRIMARY | Coyne & Delany Company Dba Delany Products Div Delany Products (USA) |
| Reference | Meaning |
|---|---|
| 053611 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-400-5154 is a Diaphragm,actuator Valve,special, manufactured by Coyne & Delany Company Dba Delany Products Div Delany Products, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-400-5154 has 1 manufacturer part number on file: F141U (Coyne & Delany Company Dba Delany Products Div Delany Products).
Key specifications for F141U: Outside Diameter: 2.750 INCHES NOMINAL IN; Style Designator: SPECIAL SHAPED; Special Features: U/O DELANY FLUSHBOY VALVES; INCLUDES: FIBER WASHER 2,RUBBER WASHER 1; Center Hole Diameter: 0.625 INCHES NOMINAL IN. 5 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.