The Valve,check, cataloged under National Stock Number 4820-00-801-2959, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit. Government technical data includes 17 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-801-2959 |
| Primary Part Number | 483 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit |
| Status | ACTIVE |
| Nominal Thread Size | 0.500 INCHES ALL ENDS IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material | ALUMINUM SEAT |
| Media for Which Designed | WATER-OIL-GAS THIRD RESPONSE |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Media for Which Designed | AIR FIRST RESPONSE |
| Disk Loading Method | SPRING |
| Thread Series Designator | NPT ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Thread Quantity Per Inch | 14 FIRST END |
| Flow Control Device | POPPET |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SECOND RESPONSE |
| Material | ALUMINUM BODY |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 483 | Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit (USA) |
NSN 4820-00-801-2959 is a Valve,check, manufactured by Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-801-2959 has 1 cross-referenced part number: 483 (Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit).
There are 12 known substitutes for 4820-00-801-2959: 6515-00-051-1952, 3110-00-100-0259, 5325-00-146-2118 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 483: Nominal Thread Size: 0.500 INCHES ALL ENDS IN; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Material: ALUMINUM SEAT; Media for Which Designed: WATER-OIL-GAS THIRD RESPONSE. 17 total characteristics are documented in the Federal Logistics Information System.