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| Item Name | Valve Check |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-145-5907 (011455907) |
| NCB Code | USA (01) |
| Manufacturer | The Boeing Company, Meggitt International Ltd, Bahr Machine Co |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 458-50004-503 | the boeing company | valve check | RFQ |
| 420945-1 | meggitt international ltd | valve check | RFQ |
| 458-50004-1 | the boeing company | valve check | RFQ |
| 420945 | meggitt international ltd | valve check | RFQ |
| 420945-2 | meggitt international ltd | valve check | RFQ |
| 458-50004-502 | the boeing company | valve check | RFQ |
| 458-50004-503 | meggitt international ltd | valve check | RFQ |
| 8100-1 | bahr machine co | valve check | RFQ |
| 458-50004-503 | bahr machine co | valve check | RFQ |
| 420945-4 | meggitt international ltd | valve check | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| CWDP | (NON-CORE DATA) RECESS NOMINAL DIAMETER | 4.020 INCHES |
| CWDS | (NON-CORE DATA) RECESS NOMINAL DEPTH | 0.205 INCHES |
| ARKN | FLANGE SHAPE | ROUND 2ND END |
| BBJX | MOUNTING POSITION | HORIZONTAL OR VERTICAL |
| CQGM | MAXIMUM OPERATING PRESSURE | 167.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| CWCD | NOMINAL OUTSIDE DIAMETER | 4.636 INCHES ALL ENDS |
| CWCF | FACE TO FACE DISTANCE | 3.885 INCHES |
| CWCK | NOMINAL THICKNESS | 0.233 INCHES 1ST END 0.233 INCHES 2ND END |
| AWLS | CONNECTION TYPE | FLANGE ALL ENDS |
| AEHZ | MAXIMUM OPERATING TEMP | 300.0 DEG FAHRENHEIT SINGLE RESPONSE |
| SR-1 | SPEC/STD CONTROLLING DATA | |
| STYL | STYLE DESIGNATOR | STRAIGHT THRU FLANGED ENDS |
| SR-1 | MANUFACTURERS CODE | 82918 |
| SUPP | SUPPLEMENTARY FEATURES | APPLICABLE TO KC-135R ACFT |
| CCFG | VALVE SIZE | 4.000 INCHES |
| SR-1 | MFR SOURCE CONTROLLING REFERENCE | 458-50004-503 |
| ADQU | FLOW CONTROL DEVICE | DISK |
| ZZZV | FSC APPLICATION DATA | AUXILIARY POWER UNIT(APU) CAGEC 79318 |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| MEDA | MEDIA FOR WHICH DESIGNED | AIR SINGLE RESPONSE |
| CWDF | FLANGE FACE DESIGN | PLAIN ALL ENDS |
| Relevant Components for NSN - 4820-01-145-5907, 4820011455907 | ||||
| 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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