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| Item Name | Valve Safety Relief |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-851-0158 (008510158) |
| NCB Code | USA (00) |
| Manufacturer | Trane Co The, Crane Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAAR | NOMINAL PIPE SIZE ACCOMMODATED | 3.000 INCHES 2ND END |
| ADQU | FLOW CONTROL DEVICE | DISK |
| ADSR | BONNET TYPE | INSIDE SPRING |
| AEHZ | MAXIMUM OPERATING TEMP | 200.0 DEG FAHRENHEIT SINGLE RESPONSE |
| AWLS | CONNECTION TYPE | THREADED INTERNAL PIPE 2ND END |
| CMLP | THREAD QUANTITY PER INCH | 8 2ND END |
| CQGM | MAXIMUM OPERATING PRESSURE | 300.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| CQJX | NOMINAL THREAD SIZE | 3.000 INCHES 2ND END |
| CWCD | NOMINAL OUTSIDE DIAMETER | 8.000 INCHES 1ST END |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | 0.750 INCHES 1ST END |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | 6.625 INCHES 1ST END |
| CWDH | RAISED FACE NOMINAL HEIGHT | 0.062 INCHES 1ST END |
| CWDL | RAISED FACE NOMINAL DIAMETER | 4.250 INCHES 1ST END |
| MATT | MATERIAL | COPPER ALLOY SEAT |
| ZZZY | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | AS DIFFERENTIATED BY NOMINAL OPENING SIZE,THD AND PIPE SIZE,AND OPENING PRESSURE SETTING |
| ADSU | DISK LOADING METHOD | SPRING |
| AECS | BOLT HOLE QUANTITY | 8 1ST END |
| AHNC | CONNECTION STYLE | PLAIN,OPTIONAL END(PIPE) 2ND END |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| ARKN | FLANGE SHAPE | ROUND WITH HOLES 1ST END |
| AWLS | CONNECTION TYPE | FLANGE 1ST END |
| CBBL | FEATURES PROVIDED | PRESSURE TIGHT OUTLET SIDE |
| CQCY | ADJUSTABLE PRESSURE RANGE | 10.0 TO 300.0 POUNDS PER SQUARE INCH |
| CSDC | OPENING PRESSURE SETTING | 23.0 POUNDS PER SQUARE INCH |
| CWDF | FLANGE FACE DESIGN | RAISED STRAIGHT 1ST END |
| MATT | MATERIAL | COPPER ALLOY FLOW CONTROL DEVICE |
| MATT | MATERIAL | COPPER ALLOY STEM |
| MATT | MATERIAL | IRON CAST BODY |
| STYL | STYLE DESIGNATOR | ANGLE |
| THSD | THREAD SERIES DESIGNATOR | NPT 2ND END |
| AAJF | THREAD DIRECTION | RIGHT-HAND 2ND END |
| ADST | BONNET ATTACHMENT METHOD | BOLTED |
| Relevant Components for NSN - 4820-00-851-0158, 4820008510158 | ||||
| 4810-01-693-0546 (4810016930546) | 4810-01-224-8636 (4810012248636) | 4810-00-181-8826 (4810001818826) | 4810-00-533-2538 (4810005332538) | |
| 4820-01-319-3454 (4820013193454) | 4820-01-154-9733 (4820011549733) | 4810-01-176-9496 (4810011769496) | 4820-01-278-5449 (4820012785449) | |
| 4810-01-152-7681 (4810011527681) | 4810-00-127-2787 (4810001272787) | 4820-00-557-7800 (4820005577800) | 4810-01-469-1460 (4810014691460) | |
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