The Cartridge,flow Control Valve, cataloged under National Stock Number 4820-01-220-8337, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hydro-Stack Mfg Corp Sub of the Oilgear Co. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-220-8337 |
| Primary Part Number | L400524HS01 |
| Item Name | Cartridge,flow Control Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hydro-Stack Mfg Corp Sub of the Oilgear Co |
| Status | ACTIVE |
| General Characteristics Item Description | WORKING PRESSURE 5000 PSI;O/A LENGTH,FULL OPEN 3.100 IN.;INCLUDES ACORN NUT TYPE HEAD IN |
| 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 |
|---|---|
| HSF1202 | Atlas Copco Holyoke Inc (USA) |
| L400524HS01 PRIMARY | Hydro-Stack Mfg Corp Sub of the Oilgear Co (USA) |
| Reference | Meaning |
|---|---|
| HSF1201 | 5/9 Secondary reference Hydro-Stack Mfg Corp Sub of the Oilgear Co |
NSN 4820-01-220-8337 is a Cartridge,flow Control Valve, manufactured by Hydro-Stack Mfg Corp Sub of the Oilgear Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-220-8337 has 2 manufacturer part numbers on file: HSF1202 (Atlas Copco Holyoke Inc), L400524HS01 (Hydro-Stack Mfg Corp Sub of the Oilgear Co).
Key specifications for L400524HS01: General Characteristics Item Description: WORKING PRESSURE 5000 PSI;O/A LENGTH,FULL OPEN 3.100 IN.;INCLUDES ACORN NUT TYPE HEAD IN. 1 specification is 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.