The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-348-6333, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Illinois Tool Works Inc.. Government technical data includes 25 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-348-6333 |
| Primary Part Number | HAR-511 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Illinois Tool Works Inc. |
| Status | ACTIVE |
| Flow Control Device | DISK, FLAT |
| Valve Stem Design | SINGLE SEAT |
| Renewable Seat Ring Type | THREADED |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Remote Actuation Method | DIAPHRAGM |
| Body Style | CROSS |
| Regulation Type | AUTOMATIC SINGLE STAGE |
| Third End Relationship with Preceding Ends | NOT IDENTICAL WITH FIRST OR SECOND END |
| First End Style Designator | PLAIN |
| End Connection Quantity | 4 |
| Valve Loading Method | SPRING |
| Third End Thread Direction | RIGHT-HAND |
| First End Connection Type | THREADED INTERNAL PIPE |
| Third End Connection Type | THREADED INTERNAL PIPE |
| Fourth End Relationship with Preceding Ends | IDENTICAL WITH THIRD END |
| Material | BRASS SEAT |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Material | COPPER ALLOY STEM |
| Media for Which Designed | AIR |
| Maximum Inlet Pressure Rating | ERR-060 |
| Third End Style Designator | PLAIN |
| Thread Size and Series/type Designator | 3/8-18 NPT FIRST END |
| Thread Size and Series/type Designator | 1/4-18 NPT THIRD END |
| Filter | INCLUDED |
| 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 |
|---|---|
| HAR-511 PRIMARY | Illinois Tool Works Inc. (USA) |
| Reference | Meaning |
|---|---|
| 85-201 | 3/9 Design control — primary reference Itw Industrial Finishing Dba Binks Devilbiss |
NSN 4820-01-348-6333 is a Valve,regulating,fluid Pressure, manufactured by Illinois Tool Works Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-348-6333 has 1 manufacturer part number on file: HAR-511 (Illinois Tool Works Inc.).
Key specifications for HAR-511: Flow Control Device: DISK, FLAT; Valve Stem Design: SINGLE SEAT; Renewable Seat Ring Type: THREADED; First End Thread Direction: RIGHT-HAND. 25 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.