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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) | 01-331-8683 (013318683) |
| NCB Code | USA (01) |
| Manufacturer | Dresser Industries Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 1905-30FC-1 S-N TH72190-193 | dresser industries inc | valve safety relief | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| CQGM | MAXIMUM OPERATING PRESSURE | 285.0 POUNDS PER SQUARE INCH 1ST RESPONSE |
| CWCR | SECOND CONNECTION FACE TO CENTERLINE DISTANCE | 4.875 INCHES |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | 4.750 INCHES 1ST END |
| CWDL | RAISED FACE NOMINAL DIAMETER | 2.750 INCHES 2ND END |
| AECS | BOLT HOLE QUANTITY | 4 ALL ENDS |
| AEHZ | MAXIMUM OPERATING TEMP | 100.0 DEG FAHRENHEIT 1ST RESPONSE |
| AEHZ | MAXIMUM OPERATING TEMP | 450.0 DEG FAHRENHEIT 2ND RESPONSE |
| CQGM | MAXIMUM OPERATING PRESSURE | 185.0 POUNDS PER SQUARE INCH 2ND RESPONSE |
| CWCD | NOMINAL OUTSIDE DIAMETER | 6.000 INCHES 1ST END |
| STYL | STYLE DESIGNATOR | ANGLE FLANGED ENDS |
| ADQU | FLOW CONTROL DEVICE | DISK |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| ARKN | FLANGE SHAPE | ROUND WITH HOLES ALL ENDS |
| AWLS | CONNECTION TYPE | FLANGE ALL ENDS |
| CWCL | FIRST CONNECTION FACE TO CENTERLINE DISTANCE | 4.750 INCHES |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | 3.875 INCHES 2ND END |
| CWDH | RAISED FACE NOMINAL HEIGHT | 0.062 INCHES ALL ENDS |
| CWDL | RAISED FACE NOMINAL DIAMETER | 3.250 INCHES 1ST END |
| MATT | MATERIAL | STEEL BODY |
| CCFG | VALVE SIZE | 1.500 INCHES |
| CQCY | ADJUSTABLE PRESSURE RANGE | 15.0/20.0 POUNDS PER SQUARE INCH |
| CWCD | NOMINAL OUTSIDE DIAMETER | 5.000 INCHES 2ND END |
| CWCK | NOMINAL THICKNESS | 0.688 INCHES 2ND END |
| CWCK | NOMINAL THICKNESS | 0.750 INCHES 1ST END |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | 0.625 INCHES 2ND END |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | 0.750 INCHES 1ST END |
| CWDF | FLANGE FACE DESIGN | RAISED STRAIGHT ALL ENDS |
| MATT | MATERIAL | STEEL COMP 316 FLOW CONTROL DEVICE |
| Relevant Components for NSN - 4820-01-331-8683, 4820013318683 | ||||
| 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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