| Item Name | Valve Safety Relief |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-187-0085 (011870085) |
| NCB Code | USA (01) |
| Manufacturer | Tycos Instruments Inc, Getinge Usa Sales Llc, Conbraco Industries Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| ADQU | FLOW CONTROL DEVICE | DISK |
| ADSR | BONNET TYPE | INSIDE SPRING |
| ADST | BONNET ATTACHMENT METHOD | INTEGRAL |
| ADSU | DISK LOADING METHOD | SPRING |
| ADSY | VALVE DISCHARGE FLOW RATE | 312.0 POUNDS PER HOUR |
| ADZH | RENEWABLE SEAT RING TYPE | THREADED |
| AHNC | CONNECTION STYLE | PLAIN (PIPE) 2ND END |
| AQLR | VALVE OPERATION METHOD | AIR OR MANUAL |
| CQCN | POWER DRIVE OPERATING PRESSURE | 45.0 POUNDS PER SQUARE INCH NOMINAL |
| CQJX | NOMINAL THREAD SIZE | 0.500 INCHES 1ST END |
| CQJX | NOMINAL THREAD SIZE | 0.500 INCHES 2ND END |
| CSDC | OPENING PRESSURE SETTING | 45.0 POUNDS PER SQUARE INCH |
| SUPP | SUPPLEMENTARY FEATURES | A 0.750 IN. DIA. X 0.125 IN. CROSS SECTION SPLIT RING,FOR MANUAL OPERATION OF VALVE |
| THSD | THREAD SERIES DESIGNATOR | NPT 1ST END |
| THSD | THREAD SERIES DESIGNATOR | NPT 2ND END |
| Relevant Components for NSN - 4820-01-187-0085, 4820011870085 | ||||
| 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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