The Valve,check, cataloged under National Stock Number 4820-01-031-3240, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hydro-Aire Aerospace Corp. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-031-3240 |
| Primary Part Number | 47-005 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Hydro-Aire Aerospace Corp |
| Status | ACTIVE |
| Seat Angle | 12.0 DEGREES FIRST END |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Flow Control Device | POPPET |
| Disk Loading Method | SPRING |
| Thread Class | 3A FIRST END A |
| Style Designator | STRAIGHT THRU |
| Connection Style | FLARELESS FIRST END |
| Valve Operation Method | AUTOMATIC |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Thread Direction | RIGHT-HAND FIRST END |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 47-005 PRIMARY | Hydro-Aire Aerospace Corp (USA) |
| A51H9030-3 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems (USA) |
| A51H9030-3 | Northrop Grumman Systems Corporation (USA) |
NSN 4820-01-031-3240 is a Valve,check, manufactured by Hydro-Aire Aerospace Corp, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-031-3240 has 3 cross-referenced part numbers: 47-005 (Hydro-Aire Aerospace Corp), A51H9030-3 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems), A51H9030-3 (Northrop Grumman Systems Corporation).
There are 12 known substitutes for 4820-01-031-3240: 5307-00-116-0486, 2590-00-288-0693, 5310-00-357-1469 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 47-005: Seat Angle: 12.0 DEGREES FIRST END; Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END; Nominal Thread Size: 0.438 INCHES FIRST END IN; Flow Control Device: POPPET. 12 total characteristics are documented in the Federal Logistics Information System.