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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) | 01-299-8435 (012998435) |
| NCB Code | USA (01) |
| Manufacturer | Curtiss Wright Flow Control Service Corporation |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 26PA11-170 | curtiss wright flow control service corporation | valve safety relief | RFQ |
| 16971-F REV B | curtiss wright flow control service corporation | valve safety relief | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| ADQU | FLOW CONTROL DEVICE | DISK |
| ADSR | BONNET TYPE | PACKING RETAINING |
| ADSU | DISK LOADING METHOD | SPRING |
| AECS | BOLT HOLE QUANTITY | 8 ALL ENDS |
| AEHZ | MAXIMUM OPERATING TEMP | 450.0 DEG FAHRENHEIT SINGLE RESPONSE |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| ARKN | FLANGE SHAPE | ROUND WITH HOLES ALL ENDS |
| AWLS | CONNECTION TYPE | FLANGE ALL ENDS |
| CCFG | VALVE SIZE | 4.000 INCHES |
| CQGM | MAXIMUM OPERATING PRESSURE | 285.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| CSDC | OPENING PRESSURE SETTING | 170.0 POUNDS PER SQUARE INCH |
| CWCD | NOMINAL OUTSIDE DIAMETER | 11.000 INCHES 1ST END |
| CWCD | NOMINAL OUTSIDE DIAMETER | 9.000 INCHES 2ND END |
| CWCK | NOMINAL THICKNESS | 0.812 INCHES 2ND END |
| CWCK | NOMINAL THICKNESS | 1.000 INCHES 1ST END |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | 0.750 INCHES 2ND END |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | 0.875 INCHES 1ST END |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | 7.500 INCHES 2ND END |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | 9.500 INCHES 1ST END |
| CWDF | FLANGE FACE DESIGN | RAISED STRAIGHT ALL ENDS |
| CWDH | RAISED FACE NOMINAL HEIGHT | 0.062 INCHES ALL ENDS |
| CWDL | RAISED FACE NOMINAL DIAMETER | 6.188 INCHES 2ND END |
| CWDL | RAISED FACE NOMINAL DIAMETER | 8.500 INCHES 1ST END |
| MATT | MATERIAL | STEEL BODY |
| MATT | MATERIAL | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| MATT | MATERIAL | STEEL CORROSION RESISTING SEAT |
| MEDA | MEDIA FOR WHICH DESIGNED | WATER-OIL-GAS SINGLE RESPONSE |
| STYL | STYLE DESIGNATOR | STRAIGHT THRU FLANGED ENDS NOTE:TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY. |
| Relevant Components for NSN - 4820-01-299-8435, 4820012998435 | ||||
| 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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