The Valve,check and Shuttle Pressure, cataloged under National Stock Number 4820-00-007-2774, 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 2 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-00-007-2774 |
| Primary Part Number | HP855400-5 |
| Item Name | Valve,check and Shuttle Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Tactair Fluid Controls Inc |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY BODY,3000.0 PSI MAX WORKING PRESSURE,MINUS 65.0 DEG F PLUS 275.0 DEG F WORKING TEMP,4 END CONNECTIONS 7/16-20 3B UNJF DEGF |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY MFR SOURCE CONTROLLING DWG A51H9205 FSCM 26512 |
| 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 |
|---|---|
| HP855400-5 | Tactair Fluid Controls Inc (USA) |
| A51H9205-5 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems (USA) |
| Reference | Meaning |
|---|---|
| A51H9205-5 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| HP855400-5 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-007-2774 is a Valve,check and Shuttle Pressure, manufactured by Tactair Fluid Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-007-2774 has 2 manufacturer part numbers on file: HP855400-5 (Tactair Fluid Controls Inc), A51H9205-5 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems).
Key specifications for HP855400-5: General Characteristics Item Description: ALUMINUM ALLOY BODY,3000.0 PSI MAX WORKING PRESSURE,MINUS 65.0 DEG F PLUS 275.0 DEG F WORKING TEMP,4 END CONNECTIONS 7/16-20 3B UNJF DEGF; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY MFR SOURCE CONTROLLING DWG A51H9205 FSCM 26512. 2 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.