The Valve,ball, cataloged under National Stock Number 4810-01-343-8387, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Watts Regulator Company. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4810-01-343-8387 |
| Primary Part Number | 2IN.EMVII6400-SS-24-40 |
| Item Name | Valve,ball |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Watts Regulator Company |
| Status | ACTIVE |
| Phase | SINGLE |
| Frequency in Hertz | 40.0 |
| Voltage in Volts and Current Type | 24.0 AC |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Operating Pressure | 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 2.000 INCHES ALL ENDS IN |
| Maximum Operating Temp | 150.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Material | STEEL CORROSION RESISTING BODY |
| Thread Series Designator | NPT ALL ENDS |
| Valve Operation Method | ELECTRIC MOTOR |
| Current Rating in Amps | 0.500 |
| 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 |
|---|---|
| 2IN.EMVII6400-SS-24-40 | Watts Regulator Company (USA) |
| Reference | Meaning |
|---|---|
| 2513-73 | 3/9 Design control — primary reference G C S Inc |
NSN 4810-01-343-8387 is a Valve,ball, manufactured by Watts Regulator Company, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-343-8387 has 1 manufacturer part number on file: 2IN.EMVII6400-SS-24-40 (Watts Regulator Company).
Key specifications for 2IN.EMVII6400-SS-24-40: Phase: SINGLE; Frequency in Hertz: 40.0; Voltage in Volts and Current Type: 24.0 AC; Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS. 17 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.