The Valve,check, cataloged under National Stock Number 4820-00-933-8469, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Curtiss-Wright Controls Integrated Sensing, Inc.. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-933-8469 |
| Primary Part Number | 20027351 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Curtiss-Wright Controls Integrated Sensing, Inc. |
| Status | ACTIVE |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Thread Class | 3A ALL ENDS A |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Flow Control Device | POPPET |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 4500.0 KILOGRAMS PER SQUARE CENTIMETER MAXIMUM SINGLE RESPONSE KG |
| Surface Treatment | PASSIVATE |
| Nominal Thread Size | 0.438 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Connection Style | FLARED (TUBE) ALL ENDS |
| Thread Series Designator | UNF ALL ENDS |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Material | STEEL CORROSION RESISTING OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-933-8469 is a Valve,check, manufactured by Curtiss-Wright Controls Integrated Sensing, Inc., classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-933-8469 has 2 cross-referenced part numbers: 20027351 (Curtiss-Wright Controls Integrated Sensing, Inc.), 60244 (Futurecraft Corp Sub of South Bend Controls Inc).
There are 7 known substitutes for 4820-00-933-8469: 5977-00-284-6772, 3120-00-386-3306, 4820-00-800-2749 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 20027351: Connection Type: THREADED EXTERNAL TUBE ALL ENDS; Valve Operation Method: AUTOMATIC; Thread Class: 3A ALL ENDS A; Thread Direction: RIGHT-HAND ALL ENDS. 15 total characteristics are documented in the Federal Logistics Information System.