The Valve,float, cataloged under National Stock Number 4820-01-346-9645, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Itt Fluid Technology Corp Itt Mcdonnell and Miller. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-346-9645 |
| Primary Part Number | NUMBER 78 .75IPS |
| Item Name | Valve,float |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Itt Fluid Technology Corp Itt Mcdonnell and Miller |
| Status | ACTIVE |
| Flow Control Device | BALL |
| Connection Style | PLAIN (PIPE) FIRST END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Maximum Operating Temp | 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | COPPER ALLOY BODY |
| Thread Series Designator | NPT FIRST END |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| NUMBER 78 .75IPS PRIMARY | Itt Fluid Technology Corp Itt Mcdonnell and Miller (USA) |
| 401485 | Itt Fluid Technology Corp Itt Mcdonnell and Miller (USA) |
| Reference | Meaning |
|---|---|
| NUMBER 78 .75IPS | 5/9 Secondary reference Itt Hoffman Specialty Mfg Co |
NSN 4820-01-346-9645 is a Valve,float, manufactured by Itt Fluid Technology Corp Itt Mcdonnell and Miller, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-346-9645 has 2 manufacturer part numbers on file: NUMBER 78 .75IPS (Itt Fluid Technology Corp Itt Mcdonnell and Miller), 401485 (Itt Fluid Technology Corp Itt Mcdonnell and Miller).
Key specifications for NUMBER 78 .75IPS: Flow Control Device: BALL; Connection Style: PLAIN (PIPE) FIRST END; Connection Type: THREADED EXTERNAL PIPE FIRST END; Style Designator: STRAIGHT THRU. 11 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.