The Valve,solenoid, cataloged under National Stock Number 4810-01-221-2920, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Oshkosh Defense Llc. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4810-01-221-2920 |
| Primary Part Number | 4SK439 |
| Item Name | Valve,solenoid |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Voltage in Volts and Current Type | 24.0 DC |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Mounting Position | HORIZONTAL |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Maximum Operating Temp | 125.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Thread Series Designator | NPT ALL ENDS |
| Valve Operation Method | SOLENOID |
| Flow Control Device Normal Operation Position | UNIVERSAL |
| 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 |
|---|---|
| 4SK439 PRIMARY | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| A6961 | 5/9 Secondary reference U.S. Government activity |
| 1410100 | 5/9 Secondary reference Oshkosh Corp |
| 4SK439 | 5/9 Secondary reference Oshkosh Corp |
NSN 4810-01-221-2920 is a Valve,solenoid, manufactured by Oshkosh Defense Llc, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-221-2920 has 1 manufacturer part number on file: 4SK439 (Oshkosh Defense Llc).
Key specifications for 4SK439: Flow Control Device: DISK; Voltage in Volts and Current Type: 24.0 DC; Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS; Mounting Position: HORIZONTAL. 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.