The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-652-0928, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Controlair Inc. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-652-0928 |
| Primary Part Number | 850-AB |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Controlair Inc |
| Status | ACTIVE |
| Flow Control Device | DIAPHRAGM |
| Second End Relationship with First End | IDENTICAL |
| Third End Relationship with Preceding Ends | IDENTICAL WITH FIRST END |
| First End Style Designator | PLAIN |
| Temp Rating | 0.0 FAHRENHEIT MINIMUM AND 150.0 FAHRENHEIT MAXIMUM DEGF |
| Outlet Pressure Range | 0.0 TO 30.0 CAMERA MOUNT |
| First End Connection Type | THREADED INTERNAL PIPE |
| Fourth End Relationship with Preceding Ends | IDENTICAL WITH FIRST END |
| First End Nominal Pipe Size Accommodated | 0.125 INCHES IN |
| Material | ZINC BODY |
| Media for Which Designed | AIR |
| Maximum Inlet Pressure Rating | ERR-060 |
| Thread Size and Series/type Designator | 0.125 NPT FIRST END |
| 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 |
|---|---|
| 850-AB PRIMARY | Controlair Inc (USA) |
NSN 4820-01-652-0928 is a Valve,regulating,fluid Pressure, manufactured by Controlair Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-652-0928 has 1 manufacturer part number on file: 850-AB (Controlair Inc).
Key specifications for 850-AB: Flow Control Device: DIAPHRAGM; Second End Relationship with First End: IDENTICAL; Third End Relationship with Preceding Ends: IDENTICAL WITH FIRST END; First End Style Designator: PLAIN. 13 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.