AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Stem Support Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-487-8174 (014878174) |
| NCB Code | USA (01) |
| Manufacturer | Huntington Ingalls Incorporated |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 254844 | huntington ingalls incorporated | stem support valve | RFQ |
| 254844 PC 5 | huntington ingalls incorporated | stem support valve | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| FEAT | Special Features | NEXT HIGHER ASSEMBLY P/N 254844, MANIFOLD 3/4 STOP CHECK DISTILLING SYSTEM. |
| MRC | Decoded Requirement | Clear Text Reply |
| TEXT | General Characteristics Item Description | MATERIAL IS FEDERAL SPEC QQ-B-637A CUNI NO. 484 1/2 HARD. INNER DIAMETER 0.766 INCH. ONE NOTCH ON OUTSIDE DIAMETER IS 0.203 INCH WIDE BY 0.219 INCH DEEP. |
| ADAV | Overall Diameter | 2.250 INCHES NOMINAL |
| AGAV | End Item Identification | USED ON SSN 688 WITHOUT CHANGE FROM THE MANIFOLD USED ON SSN 837. FURTHER SHOCK QUALIFICATION NOT REQUIRED. |
| MATT | Material | COPPER ALLOY |
| ABKW | Overall Height | 0.188 INCHES NOMINAL |
| Relevant Components for NSN - 4820-01-487-8174, 4820014878174 | ||||
| 4820-01-248-5022 (4820012485022) | 4820-01-511-3905 (4820015113905) | 4820-00-108-8528 (4820001088528) | 4820-01-613-0942 (4820016130942) | |
| 4820-00-319-7643 (4820003197643) | 4820-01-577-0941 (4820015770941) | 4820-01-262-2542 (4820012622542) | 4820-01-607-4294 (4820016074294) | |
| 4820-01-148-9327 (4820011489327) | 4820-01-292-9537 (4820012929537) | 4820-01-230-6363 (4820012306363) | 4820-01-151-4016 (4820011514016) | |
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