| Item Name | Valve Safety Relief |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-845-4168 (008454168) |
| NCB Code | USA (00) |
| Manufacturer | Snowbird Environmental Systems, Henry Technologies Limited |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAAR | NOMINAL PIPE SIZE ACCOMMODATED | 0.250 INCHES 1ST END |
| AAJF | THREAD DIRECTION | RIGHT-HAND 1ST END |
| ADQU | FLOW CONTROL DEVICE | POPPET |
| ADSR | BONNET TYPE | INSIDE SPRING |
| ADST | BONNET ATTACHMENT METHOD | INTEGRAL |
| ADSY | VALVE DISCHARGE FLOW RATE | 504.0 POUNDS PER HOUR |
| AEHZ | MAXIMUM OPERATING TEMP | 200.0 DEG FAHRENHEIT SINGLE RESPONSE |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AWLS | CONNECTION TYPE | THREADED EXTERNAL PIPE 1ST END |
| CMLP | THREAD QUANTITY PER INCH | 18 1ST END |
| CQCY | ADJUSTABLE PRESSURE RANGE | 301.0 TO 350.0 POUNDS PER SQUARE INCH |
| CQGM | MAXIMUM OPERATING PRESSURE | 350.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| CQJX | NOMINAL THREAD SIZE | 0.250 INCHES 1ST END |
| MATT | MATERIAL | COPPER ALLOY BODY |
| MATT | MATERIAL | COPPER ALLOY STEM |
| MATT | MATERIAL | STEEL SEAT |
| STYL | STYLE DESIGNATOR | ANGLE |
| THSD | THREAD SERIES DESIGNATOR | NPTF 1ST END |
| ADSU | DISK LOADING METHOD | SPRING |
| AHNC | CONNECTION STYLE | PLAIN (PIPE) 1ST END |
| CBBL | FEATURES PROVIDED | VALVE STEM LOCK SHIELD AND BONNET PACKING |
| MEDA | MEDIA FOR WHICH DESIGNED | STEAM SINGLE RESPONSE |
| Components Related to NSN - 4820-00-845-4168, 4820008454168 | ||||
| 4810-20-003-8822 (4810200038822) | 4810-01-014-8016 (4810010148016) | 4810-01-084-1238 (4810010841238) | 4810-01-411-7729 (4810014117729) | |
| 4820-01-408-3745 (4820014083745) | 4820-01-456-9072 (4820014569072) | 4820-01-297-1947 (4820012971947) | 4820-01-135-8329 (4820011358329) | |
| 4820-00-214-6773 (4820002146773) | 4810-01-588-5008 (4810015885008) | 4820-01-538-8242 (4820015388242) | 4820-01-628-7496 (4820016287496) | |
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