The Valve,restrictor Check, cataloged under National Stock Number 4820-01-140-7475, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Pneudraulics, Inc.. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-01-140-7475 |
| Primary Part Number | 6125-5 |
| Item Name | Valve,restrictor Check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Pneudraulics, Inc. |
| Status | CANCELLED |
| Mounting Position | HORIZONTAL |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Flow Control Device | POPPET |
| Thread Class | 3B FIRST END |
| Thread Series Designator | UNJS SECOND END |
| Aperture Diameter | 0.030 INCHES NOMINAL IN |
| Style Designator | STRAIGHT THRU |
| Thread Direction | RIGHT-HAND SECOND END |
| Thread Class | 3A SECOND END A |
| Thread Direction | RIGHT-HAND FIRST END |
| Thread Quantity Per Inch | 18 FIRST END |
| Material | ALUMINUM ALLOY OVERALL |
| Nominal Thread Size | 0.562 INCHES SECOND END IN |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Connection Style | GASKET SEAL (BOSS) FIRST END |
| Connection Type | THREADED INTERNAL BOSS FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A51H9088-3 | Northrop Grumman Systems Corporation (USA) |
| 6125-1 | Pneudraulics, Inc. (USA) |
| A51H9088-5 | Northrop Grumman Systems Corporation (USA) |
| A51H9088-5 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems (USA) |
| A51H9088-3 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems (USA) |
| 6125-5 PRIMARY | Pneudraulics, Inc. (USA) |
NSN 4820-01-140-7475 is a Valve,restrictor Check, manufactured by Pneudraulics, Inc., classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-01-140-7475 has 6 cross-referenced part numbers: A51H9088-3 (Northrop Grumman Systems Corporation), 6125-1 (Pneudraulics, Inc.), A51H9088-5 (Northrop Grumman Systems Corporation), A51H9088-5 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems), A51H9088-3 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems) and 1 more.
There are 11 known substitutes for 4820-01-140-7475: 1650-00-014-1859, 5305-00-061-1987, 1680-00-439-3119 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 6125-5: Mounting Position: HORIZONTAL; Nominal Thread Size: 0.562 INCHES FIRST END IN; Flow Control Device: POPPET; Thread Class: 3B FIRST END. 19 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-01-140-7475 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.