The Valve,linear,directional Control, cataloged under National Stock Number 4820-00-159-1041, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Tactair Fluid Controls Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-00-159-1041 |
| Primary Part Number | HP1128100-1 |
| Item Name | Valve,linear,directional Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Tactair Fluid Controls Inc |
| Status | ACTIVE |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY SOURCE CONTROL DRAWING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| HP1128100-1 | Tactair Fluid Controls Inc (USA) |
| A51H9023-1 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51H9023-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| HP1128100-1 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-159-1041 is a Valve,linear,directional Control, manufactured by Tactair Fluid Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-159-1041 has 2 manufacturer part numbers on file: HP1128100-1 (Tactair Fluid Controls Inc), A51H9023-1 (Northrop Grumman Systems Corporation).
Key specifications for HP1128100-1: Special Features: OPERATING PRESSURE 2000.0 PSI PROOF PRESSURE 3000.0 PSI BURST PRESSURE 3750.0 PSI PNEUMATIC PRESSURE 3000.0 PSI MEDIA HYDRAULIC,MIL-H-5606B CRACKING PRESSURE 1500.0 PSI FULL FLOW PRESSURE 1650.0 PSI BYPASS VALVE WILL OPEN W/500.0 PSI; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY SOURCE CONTROL DRAWING. 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.
NSN 4820-00-159-1041 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.