AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Valve Safety Relief |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-789-0616 (007890616) |
| NCB Code | USA (00) |
| Manufacturer | Davey Compressor Co, Drs Environmental Systems Inc, Anderson Greenwood Lp |
| MRC | Criteria | Characteristic |
|---|---|---|
| ADQU | FLOW CONTROL DEVICE | DISK |
| ADSU | DISK LOADING METHOD | SPRING |
| ADSY | VALVE DISCHARGE FLOW RATE | 173.0 CUBIC FEET PER MINUTE |
| AECS | BOLT HOLE QUANTITY | 6 1ST END |
| AEHZ | MAXIMUM OPERATING TEMP | 400.0 DEG FAHRENHEIT SINGLE RESPONSE |
| AKGF | NOMINAL WIDTH | 2.156 INCHES 1ST END |
| AKGG | NOMINAL LENGTH | 2.938 INCHES 1ST END |
| ARKN | FLANGE SHAPE | OVAL WITH HOLES 1ST END |
| AWLS | CONNECTION TYPE | FLANGE 1ST END |
| CSDC | OPENING PRESSURE SETTING | 140.0 POUNDS PER SQUARE INCH |
| CWCK | NOMINAL THICKNESS | 0.312 INCHES 1ST END |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | 0.344 INCHES 1ST END |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | 2.500 INCHES 1ST END |
| CWDF | FLANGE FACE DESIGN | PLAIN 1ST END |
| MATT | MATERIAL | COPPER ALLOY OVERALL |
| MEDA | MEDIA FOR WHICH DESIGNED | AIR SINGLE RESPONSE |
| STYL | STYLE DESIGNATOR | ANGLE |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| CQGM | MAXIMUM OPERATING PRESSURE | 150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| Relevant Components for NSN - 4820-00-789-0616, 4820007890616 | ||||
| 4820-01-355-0373 (4820013550373) | 4820-01-596-5537 (4820015965537) | 4820-01-428-4292 (4820014284292) | 4820-01-572-3577 (4820015723577) | |
| 4820-01-535-9663 (4820015359663) | 4820-01-278-9880 (4820012789880) | 4820-01-412-2051 (4820014122051) | 4820-12-365-1402 (4820123651402) | |
| 4810-12-380-1387 (4810123801387) | 4820-01-492-3226 (4820014923226) | 4820-01-299-0262 (4820012990262) | 4820-01-263-0040 (4820012630040) | |
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