The Valve,check, cataloged under National Stock Number 4820-00-802-6573, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Aerocontrolex Group, Inc.. Government technical data includes 16 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-802-6573 |
| Primary Part Number | M920 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Aerocontrolex Group, Inc. |
| Status | ACTIVE |
| Mounting Position | HORIZONTAL |
| Maximum Operating Temp | 700.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Thread Quantity Per Inch | 28 ALL ENDS |
| Thread Class | 3A ALL ENDS A |
| Style Designator | STRAIGHT THRU |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Nominal Thread Size | 2.500 INCHES ALL ENDS IN |
| Surface Treatment | PASSIVATE |
| Material | STEEL CORROSION RESISTING OVERALL |
| Disk Loading Method | SPRING |
| Flow Control Device | DISK |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Connection Style | PLAIN (TUBE) ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| M920 PRIMARY | Aerocontrolex Group, Inc. (USA) |
NSN 4820-00-802-6573 is a Valve,check, manufactured by Aerocontrolex Group, Inc., classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-802-6573 has 1 cross-referenced part number: M920 (Aerocontrolex Group, Inc.).
There are 4 known substitutes for 4820-00-802-6573: 5998-00-152-8497, 6135-00-567-1296, 7035-01-116-6223 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for M920: Mounting Position: HORIZONTAL; Maximum Operating Temp: 700.0 FAHRENHEIT SINGLE RESPONSE DEGF; Thread Quantity Per Inch: 28 ALL ENDS; Thread Class: 3A ALL ENDS A. 16 total characteristics are documented in the Federal Logistics Information System.