The Valve,check, cataloged under National Stock Number 4820-00-725-8660, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Flowserve Inc. Government technical data includes 18 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-725-8660 |
| Primary Part Number | 3498 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Flowserve Inc |
| Status | ACTIVE |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Maximum Operating Temp | 450.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Nominal Pipe Size Accommodated | 2.000 INCHES ALL ENDS IN |
| Thread Quantity Per Inch | 11-1/2 ALL ENDS |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Style Designator | STRAIGHT THRU |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Operating Pressure | 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 2.000 INCHES ALL ENDS IN |
| Thread Series Designator | NPT ALL ENDS |
| Material | STEEL BODY |
| Mounting Position | VERTICAL |
| Material | STEEL CORROSION RESISTING SEAT |
| Flow Control Device | DISK |
| Valve Operation Method | AUTOMATIC |
| Renewable Seat Ring Type | THREADED |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 3498 PRIMARY | Flowserve Inc (USA) |
NSN 4820-00-725-8660 is a Valve,check, manufactured by Flowserve Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-725-8660 has 1 cross-referenced part number: 3498 (Flowserve Inc).
There are 8 known substitutes for 4820-00-725-8660: 5340-00-086-9749, 6515-00-364-2100, 6515-01-305-4108 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 3498: Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS; Maximum Operating Temp: 450.0 FAHRENHEIT SINGLE RESPONSE DEGF; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Nominal Pipe Size Accommodated: 2.000 INCHES ALL ENDS IN. 18 total characteristics are documented in the Federal Logistics Information System.