| Item Name | Valve Safety Relief |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-445-1013 (014451013) |
| NCB Code | USA (01) |
| Manufacturer | Parker Hannifin Corporation, Lincoln Electric Holdings Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| ADSU | Disk Loading Method | SPRING |
| ADQU | Flow Control Device | POPPET |
| AHNC | Connection Style | PLAIN (SCREW-IN CARTRIDGE) ALL ENDS |
| AEHZ | Maximum Operating Temp | 250.0 DEG FAHRENHEIT SINGLE RESPONSE |
| CQGM | Maximum Operating Pressure | 3500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| AAJF | Thread Direction | RIGHT-HAND ALL ENDS |
| STYL | Style Designator | SCREW-IN CARTRIDGE |
| FEAT | Special Features | CARTRIDGE TYPE; PILOT-OPERATED |
| AGAV | End Item Identification | BLUE RIDGE CLASS LCC-19 |
| CQCY | Adjustable Pressure Range | +100.0/+2000.0 POUNDS PER SQUARE INCH |
| AAJD | Thread Class | 2A ALL ENDS |
| CQJX | Nominal Thread Size | 0.875 INCHES ALL ENDS |
| THSD | Thread Series Designator | UNF ALL ENDS |
| MATT | Material | STEEL BODY |
| MRC | Decoded Requirement | Clear Text Reply |
| AWLS | Connection Type | THREADED CARTRIDGE ALL ENDS |
| AQLR | Valve Operation Method | AUTOMATIC |
| Relevant Components for NSN - 4820-01-445-1013, 4820014451013 | ||||
| 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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