The Valve,rotary,selector, cataloged under National Stock Number 4820-01-439-5281, 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 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-439-5281 |
| Primary Part Number | 8471E-1/4 D28P |
| Item Name | Valve,rotary,selector |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
| Status | ACTIVE |
| Maximum Operating Temp and Media for Which Designed | 160.0 FAHRENHEIT HYDRAULIC FLUID, PETROLEUM BASE DEGF |
| Operating Pressure and Type | 3000.0 POUNDS PER SQUARE INCH (PSI) AIR MAXIMUM REQUIRED LBS |
| Connection Type | THREADED INTERNAL PIPE |
| Valve Size | 0.250 INCHES IN |
| Flow Type | THREE-WAY |
| Nominal Thread Size | 0.250 INCHES IN |
| Body Material | ALUMINUM ALLOY |
| Mounting Facility | PANEL |
| Connection Location | SIDE |
| Connection Quantity | 3 |
| Thread Series Designator | NPT |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| 8471E-1/4 D28P PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA) |
| 8471E-1/4 D28P | Hersh Packing & Rubber Co (USA) |
| Reference | Meaning |
|---|---|
| 6139171 | D/9 Drawing number reference only U.S. Government activity |
| 8471E-1/4 D28P | 5/9 Secondary reference U.S. Government activity |
| 6139171 FIND 22 | 5/2 Secondary reference U.S. Government activity |
NSN 4820-01-439-5281 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 4820-01-439-5281 has 2 manufacturer part numbers on file: 8471E-1/4 D28P (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division), 8471E-1/4 D28P (Hersh Packing & Rubber Co).
2 possible matches (shared part number, not a government interchangeability claim): 4330-01-439-6135, 4330-01-439-6167. Verify interchangeability with system specifications before substitution.
Key specifications for 8471E-1/4 D28P: Maximum Operating Temp and Media for Which Designed: 160.0 FAHRENHEIT HYDRAULIC FLUID, PETROLEUM BASE DEGF; Operating Pressure and Type: 3000.0 POUNDS PER SQUARE INCH (PSI) AIR MAXIMUM REQUIRED LBS; Connection Type: THREADED INTERNAL PIPE; Valve Size: 0.250 INCHES IN. 12 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.