The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-522-3452, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Sterling Hydraulics Inc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-522-3452 |
| Primary Part Number | C02A3CZN |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Sterling Hydraulics Inc |
| Status | ACTIVE |
| Flow Control Device | PISTON, SPRING LOADED |
| First End Thread Direction | RIGHT-HAND |
| First End Style Designator | EXTERNAL SEAT FOR GASKET SEAL |
| Temp Rating | -20.0 FAHRENHEIT MINIMUM AND 210.0 FAHRENHEIT MAXIMUM DEGF |
| End Connection Quantity | 1 |
| Valve Loading Method | SPRING |
| First End Connection Type | THREADED EXTERNAL BOSS |
| Maximum Inlet Pressure Rating | ERR-060 |
| Thread Size and Series/type Designator | 0.750 UNF FIRST 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 |
|---|---|
| C02A3CZN PRIMARY | Sterling Hydraulics Inc (USA) |
| 49358 REV D BUBB# 3 | Allied Systems Company Dba Allied Systems Co (USA) |
| 245790 | Allied Systems Company Dba Allied Systems Co (USA) |
NSN 4820-01-522-3452 is a Valve,regulating,fluid Pressure, manufactured by Sterling Hydraulics Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-522-3452 has 3 manufacturer part numbers on file: C02A3CZN (Sterling Hydraulics Inc), 49358 REV D BUBB# 3 (Allied Systems Company Dba Allied Systems Co), 245790 (Allied Systems Company Dba Allied Systems Co).
Key specifications for C02A3CZN: Flow Control Device: PISTON, SPRING LOADED; First End Thread Direction: RIGHT-HAND; First End Style Designator: EXTERNAL SEAT FOR GASKET SEAL; Temp Rating: -20.0 FAHRENHEIT MINIMUM AND 210.0 FAHRENHEIT MAXIMUM DEGF. 10 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.