| Item Name | Seat Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-633-1985 (006331985) |
| NCB Code | USA (00) |
| Manufacturer | Hamilton Sundstrand Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKK | FLANGE DIAMETER | 0.862 INCHES MINIMUM AND 0.864 INCHES MAXIMUM |
| ADAR | BODY OUTSIDE DIAMETER | 0.749 INCHES MINIMUM AND 0.755 INCHES MAXIMUM |
| ADAS | BODY INSIDE DIAMETER | 0.155 INCHES MINIMUM AND 0.157 INCHES MAXIMUM |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | 0.165 NOMINAL MILS AND 0.255 NOMINAL CENTIMETERS |
| AJRM | UNDER FLANGE HEIGHT | 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM |
| CQKM | SEATING SURFACE SHAPE | FLAT |
| FEAT | SPECIAL FEATURES | DRILL NO47,0.079 DIA,THRU 3 HOLESEQUALLY SPACED |
| MATT | MATERIAL | STEEL OVERALL |
| STYL | STYLE DESIGNATOR | PLAIN FLANGED |
| Components Related to NSN - 4820-00-633-1985, 4820006331985 | ||||
| 4820-01-572-7837 (4820015727837) | 4820-01-478-2496 (4820014782496) | 4810-01-232-8702 (4810012328702) | 4820-12-340-3271 (4820123403271) | |
| 4820-01-424-4726 (4820014244726) | 4820-00-428-7011 (4820004287011) | 4810-01-707-6012 (4810017076012) | 4820-01-671-9772 (4820016719772) | |
| 4820-00-034-1423 (4820000341423) | 4820-01-160-8232 (4820011608232) | 4820-00-032-4754 (4820000324754) | 4810-01-516-2099 (4810015162099) | |
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