| Item Name | Seat Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-771-8890 (007718890) |
| NCB Code | USA (00) |
| Manufacturer | Carleton Life Support Technologies |
| MRC | Criteria | Characteristic |
|---|---|---|
| AJRF | FLANGE SEAT TO DISK END HEIGHT | 0.625 NOMINAL INCHES |
| AJRM | UNDER FLANGE HEIGHT | 0.057 INCHES NOMINAL |
| CQKW | BODY STEPPED INSIDE DIAMETER | 0.438 INCHES NOMINAL THIRD STEP |
| CQKW | BODY STEPPED INSIDE DIAMETER | 0.625 INCHES NOMINAL FOURTH STEP |
| MATT | MATERIAL | ALUMINUM ALLOY 2024 OVERALL |
| SFTT | SURFACE TREATMENT | ANODIZE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | PLAIN FLANGED |
| ABKK | FLANGE DIAMETER | 0.687 INCHES NOMINAL |
| ADAR | BODY OUTSIDE DIAMETER | 0.265 INCHES NOMINAL |
| CQKM | SEATING SURFACE SHAPE | FLAT |
| CQKW | BODY STEPPED INSIDE DIAMETER | 0.234 NOMINAL INCHES FIRST STEP |
| CQKW | BODY STEPPED INSIDE DIAMETER | 0.281 INCHES NOMINAL SECOND STEP |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-268,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Relevant Components for NSN - 4820-00-771-8890, 4820007718890 | ||||
| 4820-01-457-8919 (4820014578919) | 4820-00-518-4670 (4820005184670) | 4820-01-087-8164 (4820010878164) | 4820-01-658-8314 (4820016588314) | |
| 4820-01-600-0105 (4820016000105) | 4820-01-221-1573 (4820012211573) | 4820-01-117-0037 (4820011170037) | 4820-01-047-2107 (4820010472107) | |
| 4820-00-818-1047 (4820008181047) | 4820-01-544-0867 (4820015440867) | 4810-00-679-2778 (4810006792778) | 4820-01-115-6756 (4820011156756) | |
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