The Valve,check, cataloged under National Stock Number 4820-00-726-0080, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-726-0080 |
| Primary Part Number | 4570 2IN |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Ashcroft Inc Dba Heise |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Flow Control Device | DISK |
| Thread Quantity Per Inch | 11-1/2 ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Material | COPPER ALLOY SEAT |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 2.000 INCHES ALL ENDS IN |
| Thread Series Designator | NPT ALL ENDS |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY VALVE SIZE |
| Media for Which Designed | STEAM SINGLE RESPONSE |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Style Designator | STRAIGHT THRU |
| Material | COPPER ALLOY BODY |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Maximum Operating Temp | 550.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nominal Pipe Size Accommodated | 2.000 INCHES ALL ENDS IN |
| Mounting Position | VERTICAL |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-726-0080 is a Valve,check, manufactured by Ashcroft Inc Dba Heise, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-726-0080 has 2 cross-referenced part numbers: 4570 2IN (Ashcroft Inc Dba Heise), 4570 (Ashcroft Inc Dba Heise).
There are 12 known substitutes for 4820-00-726-0080: 6240-00-132-5328, 5925-00-174-0387, 5935-00-205-9408 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 4570 2IN: Material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE; Flow Control Device: DISK; Thread Quantity Per Inch: 11-1/2 ALL ENDS; Valve Operation Method: AUTOMATIC. 18 total characteristics are documented in the Federal Logistics Information System.