The Valve,check, cataloged under National Stock Number 4820-00-298-7557, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Ausco Inc. Government technical data includes 11 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-298-7557 |
| Primary Part Number | H625-6 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Ausco Inc |
| Status | ACTIVE |
| Style Designator | STRAIGHT THRU DROP-IN CARTRIDGE |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Surface Treatment | PASSIVATE |
| Maximum Operating Temp | 275.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Flow Control Device | POPPET |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Valve Operation Method | AUTOMATIC |
| Connection Style | GROOVED (DROP-IN CARTRIDGE) FIRST END |
| Connection Type | UNTHREADED CARTRIDGE ALL ENDS |
| Minimum Operating Temp | -65.0 FAHRENHEIT DEGF |
| Material | STEEL COMP 303 BODY |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-298-7557 is a Valve,check, manufactured by Ausco Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-298-7557 has 2 cross-referenced part numbers: 6980006 (Parker Hannifin Corporation Div Hydraulic Systems Division), H625-6 (Ausco Inc).
There is 1 known substitute for 4820-00-298-7557: 5305-00-013-3043. Verify interchangeability with system specifications before substitution.
Key specifications for H625-6: Style Designator: STRAIGHT THRU DROP-IN CARTRIDGE; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Surface Treatment: PASSIVATE; Maximum Operating Temp: 275.0 FAHRENHEIT SINGLE RESPONSE DEGF. 11 total characteristics are documented in the Federal Logistics Information System.