| Item Name | Valve Check |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-479-8800 (014798800) |
| NCB Code | USA (01) |
| Manufacturer | Northrop Grumman Systems Corporation, Circor Aerospace Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| ADSU | Disk Loading Method | SPRING |
| FEAT | Special Features | OPERATING PRESSURE TO 3000 PSIG; PROOF PRESSURE 2 1/2 TO 4 TIMES OPERATION PRESSURE; TEMPERATURE AND CRACKING PRESSURE RANGE -40 TO +250 DEG FEH, 2-4 PSIG |
| ADQU | Flow Control Device | POPPET |
| STYL | Style Designator | STRAIGHT THRU |
| BBJX | Mounting Position | HORIZONTAL |
| AAJF | Thread Direction | RIGHT-HAND ALL ENDS |
| AEHZ | Maximum Operating Temp | 250.0 DEG FAHRENHEIT SINGLE RESPONSE |
| AQLR | Valve Operation Method | AUTOMATIC |
| CWFD | Nominal Outside Diameter Tube Accommodated | 0.438 INCHES ALL ENDS |
| MEDA | Media For Which Designed | AIR SINGLE RESPONSE |
| AWLS | Connection Type | THREADED INTERNAL TUBE ALL ENDS |
| CQJX | Nominal Thread Size | 0.250 INCHES ALL ENDS |
| CSDC | Opening Pressure Setting | 2.0 POUNDS PER SQUARE INCH |
| AAJD | Thread Class | 3B ALL ENDS |
| CQGM | Maximum Operating Pressure | 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| MATT | Material | ALUMINUM ALLOY 2024 BODY |
| THSD | Thread Series Designator | UNJF ALL ENDS |
| MRC | Decoded Requirement | Clear Text Reply |
| AHNC | Connection Style | GASKET SEAL (BOSS) ALL ENDS |
| Relevant Components for NSN - 4820-01-479-8800, 4820014798800 | ||||
| 4820-00-405-2314 (4820004052314) | 4820-01-644-7717 (4820016447717) | 4820-00-138-5801 (4820001385801) | 4820-01-478-3615 (4820014783615) | |
| 4810-01-231-9665 (4810012319665) | 4810-01-463-1795 (4810014631795) | 4820-01-270-4213 (4820012704213) | 4820-01-482-5390 (4820014825390) | |
| 4810-01-574-6488 (4810015746488) | 4820-01-375-3688 (4820013753688) | 4810-01-486-6370 (4810014866370) | 4820-01-562-8058 (4820015628058) | |
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