The Valve,restrictor Check, cataloged under National Stock Number 4820-01-478-6493, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-478-6493 |
| Primary Part Number | 25154 |
| Item Name | Valve,restrictor Check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Supplementary Features | FLOW CONTROL DEVICE: PLUG |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Nominal Thread Size | 0.500 INCHES ALL ENDS IN |
| Thread Series Designator | NPT ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Thread Quantity Per Inch | 14 ALL ENDS |
| Material | STEEL CORROSION RESISTING OVERALL |
| Nominal Pipe Size Accommodated | 0.500 INCHES ALL ENDS IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 25154 PRIMARY | Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. (USA) |
NSN 4820-01-478-6493 is a Valve,restrictor Check, manufactured by Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc., classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-478-6493 has 1 cross-referenced part number: 25154 (Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.).
There are 5 known substitutes for 4820-01-478-6493: 7920-00-111-6344, 5133-00-228-1351, 5330-00-353-9362 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 25154: Thread Direction: RIGHT-HAND ALL ENDS; Supplementary Features: FLOW CONTROL DEVICE: PLUG; Connection Type: THREADED INTERNAL PIPE ALL ENDS; End Item Identification: 2350-01-328-5964; W/S ABRAMS M1 TANK. 11 total characteristics are documented in the Federal Logistics Information System.