AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Valve Ball |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-137-8180 (011378180) |
| NCB Code | USA (01) |
| Manufacturer | Electric Boat Corporation, Huntington Ingalls Incorporated, Derbyshire Machine And Tool Co |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 2640-645 | electric boat corporation | valve ball | RFQ |
| 255948ASSEMBLYAT2IN | huntington ingalls incorporated | valve ball | RFQ |
| 2640-645 ASSEMBLY AT | electric boat corporation | valve ball | RFQ |
| 255948 ASSY-AT-2IN | huntington ingalls incorporated | valve ball | RFQ |
| 255948 | huntington ingalls incorporated | valve ball | RFQ |
| 255948 ASSY-AT-2IN | derbyshire machine and tool co | valve ball | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AECS | BOLT HOLE QUANTITY | 6 ALL ENDS |
| AEHZ | MAXIMUM OPERATING TEMP | 150.0 DEG FAHRENHEIT SINGLE RESPONSE |
| AQLR | VALVE OPERATION METHOD | MANUAL |
| ARKN | FLANGE SHAPE | ROUND WITH HOLES ALL ENDS |
| AWLS | CONNECTION TYPE | FLANGE ALL ENDS |
| CCFG | VALVE SIZE | 2.000 INCHES |
| CWCD | NOMINAL OUTSIDE DIAMETER | 5.562 INCHES 1ST END |
| CWCF | FACE TO FACE DISTANCE | 9.875 INCHES |
| CWCK | NOMINAL THICKNESS | 0.844 INCHES ALL ENDS |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | 0.688 INCHES ALL ENDS |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | 4.438 INCHES ALL ENDS |
| CWDF | FLANGE FACE DESIGN | PLAIN ALL ENDS |
| MATT | MATERIAL | NICKEL ALLOY BODY |
| MATT | MATERIAL | NICKEL ALLOY STEM |
| MATT | MATERIAL | PLASTIC SEAT |
| MATT | MATERIAL | TITANIUM FLOW CONTROL DEVICE |
| MEDA | MEDIA FOR WHICH DESIGNED | WATER,SALT SINGLE RESPONSE |
| STYL | STYLE DESIGNATOR | STRAIGHT THRU FLANGED ENDS |
| TMQY | FURNISHED ITEMS AND QUANTITY | 1 TAILPIECE |
| Relevant Components for NSN - 4820-01-137-8180, 4820011378180 | ||||
| 4820-01-437-8926 (4820014378926) | 4820-01-258-2410 (4820012582410) | 4820-00-432-1714 (4820004321714) | 4820-01-271-9629 (4820012719629) | |
| 4820-01-578-9600 (4820015789600) | 4820-00-092-6590 (4820000926590) | 4820-01-417-2811 (4820014172811) | 4820-01-365-0880 (4820013650880) | |
| 4820-01-697-1452 (4820016971452) | 4820-15-149-7310 (4820151497310) | 4820-00-506-2869 (4820005062869) | 4820-00-330-9420 (4820003309420) | |
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