The Valve,solenoid, cataloged under National Stock Number 4810-00-494-2978, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S. Government technical data includes 21 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-00-494-2978 |
| Primary Part Number | K181B445H4C4 |
| Item Name | Valve,solenoid |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S |
| Status | ACTIVE |
| Flow Control Device | DIAPHRAGMDIAPHRAGM |
| Renewable Seat Ring Type | PRESSED-INPRESSED-IN |
| Phase | SINGLESINGLE |
| Frequency in Hertz | 60.060.0 |
| Voltage in Volts and Current Type | 120.0 AC120.0 AC |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDSPLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Mounting Position | HORIZONTALHORIZONTAL |
| Connection Type | THREADED INTERNAL PIPE ALL ENDSTHREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRUSTRAIGHT THRU |
| Operating Pressure | 100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND ALL ENDSRIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.500 INCHES ALL ENDS0.500 INCHES ALL ENDS IN |
| Maximum Operating Temp | 338.0 FAHRENHEIT SINGLE RESPONSE338.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Media for Which Designed | STEAM SINGLE RESPONSESTEAM SINGLE RESPONSE |
| Material | COPPER ALLOY BODYCOPPER ALLOY BODY |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE FLOW CONTROL DEVICEPLASTIC POLYTETRAFLUOROETHYLENE FLOW CONTROL DEVICE |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEATPLASTIC POLYTETRAFLUOROETHYLENE SEAT |
| Thread Series Designator | NPT ALL ENDSNPT ALL ENDS |
| Valve Operation Method | SOLENOIDSOLENOID |
| Current Rating in Amps | 0.0670.067 |
| Flow Control Device Normal Operation Position | CLOSED |
| 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 |
|---|---|
| K181B445H4C4 PRIMARY | Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S (USA) |
| S211AH04T4DG1 PRIMARY | Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S (USA) |
NSN 4810-00-494-2978 is a Valve,solenoid, manufactured by Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-00-494-2978 has 2 manufacturer part numbers on file: K181B445H4C4 (Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S), S211AH04T4DG1 (Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S).
Key specifications for K181B445H4C4: Flow Control Device: DIAPHRAGMDIAPHRAGM; Renewable Seat Ring Type: PRESSED-INPRESSED-IN; Phase: SINGLESINGLE; Frequency in Hertz: 60.060.0. 21 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.