| Item Name | Valve Safety Relief |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-439-6630 (014396630) |
| NCB Code | USA (01) |
| Manufacturer | General Motors Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AWLS | Connection Type | FLANGE 1ST END |
| ADSU | Disk Loading Method | SPRING |
| CWCD | Nominal Outside Diameter | 9.000 INCHES 2ND END |
| AECS | Bolt Hole Quantity | 8 1ST END |
| ADST | Bonnet Attachment Method | BOLTED |
| CWCT | Bolt Circle Nominal Diameter | 7.875 INCHES 1ST END |
| CWCQ | Bolt Hole Nominal Diameter | 0.875 INCHES 1ST END |
| CWDL | Raised Face Nominal Diameter | 6.937 INCHES 1ST END |
| CWDF | Flange Face Design | PLAIN 2ND END |
| AECS | Bolt Hole Quantity | 8 2ND END |
| MATT | Material | STEEL STEM |
| AWLS | Connection Type | FLANGE 2ND END |
| AZGM | Mounting Facility | BRACKET |
| MEDA | Media For Which Designed | OIL, LUBRICATING, DIESTER BASE SINGLE RESPONSE |
| CWCK | Nominal Thickness | 0.937 INCHES 2ND END |
| CWDF | Flange Face Design | RAISED STRAIGHT 1ST END |
| ARKN | Flange Shape | ROUND WITH HOLES 2ND END |
| CCFG | Valve Size | 4.000 INCHES |
| CWCD | Nominal Outside Diameter | 10.000 INCHES 1ST END |
| CWCQ | Bolt Hole Nominal Diameter | 0.750 INCHES 2ND END |
| CWDH | Raised Face Nominal Height | 0.062 INCHES 1ST END |
| CQGM | Maximum Operating Pressure | 400.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| MATT | Material | COPPER ALLOY FLOW CONTROL DEVICE |
| CWCK | Nominal Thickness | 1.250 INCHES 1ST END |
| CWCT | Bolt Circle Nominal Diameter | 7.500 INCHES 2ND END |
| ARKN | Flange Shape | ROUND WITH HOLES 1ST END |
| ADQU | Flow Control Device | DISK |
| STYL | Style Designator | ANGLE FLANGED ENDS |
| ADSR | Bonnet Type | INSIDE SCREW |
| MRC | Decoded Requirement | Clear Text Reply |
| AGAV | End Item Identification | USNS STALWART CLASS TAGOS |
| MATT | Material | IRON BODY |
| CSDC | Opening Pressure Setting | 20.0 POUNDS PER SQUARE INCH |
| AQLR | Valve Operation Method | AUTOMATIC |
| FEAT | Special Features | MODEL 091K-M |
| Relevant Components for NSN - 4820-01-439-6630, 4820014396630 | ||||
| 4820-01-695-0145 (4820016950145) | 4820-01-596-1771 (4820015961771) | 4810-01-187-3363 (4810011873363) | 4810-01-523-6894 (4810015236894) | |
| 4820-00-707-0356 (4820007070356) | 4820-01-568-0815 (4820015680815) | 4820-01-227-9365 (4820012279365) | 4820-01-104-8145 (4820011048145) | |
| 4820-01-299-5713 (4820012995713) | 4820-01-640-9566 (4820016409566) | 4810-01-346-0666 (4810013460666) | 4820-01-655-5932 (4820016555932) | |
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