The Poppet,hydraulic,actuator, cataloged under National Stock Number 4820-00-431-8060, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Northrop Grumman Systems Corporation. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-431-8060 |
| Primary Part Number | A51H10604-11 |
| Item Name | Poppet,hydraulic,actuator |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | CRES,PASSIVATED,2.750 IN. LG,0.685 IN. MIN,0.687 IN. MAX ODEXCL LIPS,0.562 IN. ID 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 |
|---|---|
| A51H10604-11 | Kell-Strom Tool International, Inc. (USA) |
| A51H10604-11 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51H10604-11 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| A51H10604-11 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
NSN 4820-00-431-8060 is a Poppet,hydraulic,actuator, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-431-8060 has 2 manufacturer part numbers on file: A51H10604-11 (Kell-Strom Tool International, Inc.), A51H10604-11 (Northrop Grumman Systems Corporation).
Key specifications for A51H10604-11: General Characteristics Item Description: CRES,PASSIVATED,2.750 IN. LG,0.685 IN. MIN,0.687 IN. MAX ODEXCL LIPS,0.562 IN. ID 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.