The Valve,rotary,selector, cataloged under National Stock Number 4820-01-182-0905, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division. Government technical data includes 15 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-182-0905 |
| Primary Part Number | 8541F-3/4AD28 |
| Item Name | Valve,rotary,selector |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
| Status | ACTIVE |
| Flow Control Device | PORTED ROTOR |
| Maximum Operating Temp and Media for Which Designed | 160.0 FAHRENHEIT AIR DEGF |
| Operating Pressure and Type | 1000.0 POUNDS PER SQUARE INCH (PSI) AIR MAXIMUM REQUIRED LBS |
| Criticality Code Justification | FEAT |
| Connection Type | THREADED INTERNAL PIPE |
| Valve Size | 0.750 INCHES IN |
| Features Provided | CLOSED CENTER |
| Flow Type | FOUR-WAY |
| Nominal Thread Size | 0.750 INCHES IN |
| Body Material | ALUMINUM ALLOY |
| Mounting Facility | INLINE |
| Connection Location | SIDE |
| Connection Quantity | 4 |
| Thread Series Designator | NPT |
| Valve Operation Method | MANUAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 8541F-3/4AD28 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA) |
| Reference | Meaning |
|---|---|
| 8541E-3/4AD28 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
| 8541E-3/4-AD28-D | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 8541E-3/4AD28 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-182-0905 is a Valve,rotary,selector, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-182-0905 has 1 manufacturer part number on file: 8541F-3/4AD28 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division).
Key specifications for 8541F-3/4AD28: Flow Control Device: PORTED ROTOR; Maximum Operating Temp and Media for Which Designed: 160.0 FAHRENHEIT AIR DEGF; Operating Pressure and Type: 1000.0 POUNDS PER SQUARE INCH (PSI) AIR MAXIMUM REQUIRED LBS; Criticality Code Justification: FEAT. 15 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.
NSN 4820-01-182-0905 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.