| Item Name | Valve Safety Relief |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-289-1857 (002891857) |
| NCB Code | USA (00) |
| Manufacturer | Derbyshire Machine And Tool Co, Kieley And Mueller Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAAR | NOMINAL PIPE SIZE ACCOMMODATED | 1.000 INCHES 1ST END |
| ADQU | FLOW CONTROL DEVICE | DISK |
| ADSU | DISK LOADING METHOD | SPRING |
| AEHZ | MAXIMUM OPERATING TEMP | 125.0 DEG FAHRENHEIT SINGLE RESPONSE |
| AHNC | CONNECTION STYLE | SOCKET 1ST END |
| AQLR | VALVE OPERATION METHOD | MANUAL |
| AWLS | CONNECTION TYPE | UNTHREADED INTERNAL PIPE 1ST END |
| CBBL | FEATURES PROVIDED | PRESSURE TIGHT OUTLET SIDE |
| CQCY | ADJUSTABLE PRESSURE RANGE | 30.0 TO 75.0 POUNDS PER SQUARE INCH |
| CQGM | MAXIMUM OPERATING PRESSURE | 100.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| FEAT | SPECIAL FEATURES | W/LIFTING LEVER |
| MATT | MATERIAL | COPPER ALLOY BODY |
| MATT | MATERIAL | COPPER ALLOY STEM |
| MATT | MATERIAL | NICKEL ALLOY SEAT |
| MEDA | MEDIA FOR WHICH DESIGNED | WATER,FRESH SINGLE RESPONSE |
| STYL | STYLE DESIGNATOR | ANGLE |
| Relevant Components for NSN - 4820-00-289-1857, 4820002891857 | ||||
| 4810-01-082-6236 (4810010826236) | 4820-01-353-3012 (4820013533012) | 4820-01-343-6188 (4820013436188) | 4820-01-182-0778 (4820011820778) | |
| 4820-01-279-9726 (4820012799726) | 4820-01-650-3218 (4820016503218) | 4820-01-554-6644 (4820015546644) | 4810-01-508-9300 (4810015089300) | |
| 4820-01-050-6401 (4820010506401) | 4820-01-565-3783 (4820015653783) | 4820-01-465-6661 (4820014656661) | 4820-01-316-3323 (4820013163323) | |
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