| 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 |
| Relevant Components for NSN - 4820-00-633-1985, 4820006331985 | ||||
| 4820-01-695-0145 (4820016950145) | 4820-01-596-1771 (4820015961771) | 4810-01-187-3363 (4810011873363) | 4810-01-523-6894 (4810015236894) | |
| 4820-00-707-0356 (4820007070356) | 4820-01-568-0815 (4820015680815) | 4820-01-227-9365 (4820012279365) | 4820-01-104-8145 (4820011048145) | |
| 4820-01-299-5713 (4820012995713) | 4820-01-640-9566 (4820016409566) | 4810-01-346-0666 (4810013460666) | 4820-01-655-5932 (4820016555932) | |
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