| Item Name | Seat Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4810 Valves Powered |
| National Item Identification Number (NIIN) | 01-222-0257 (012220257) |
| NCB Code | USA (01) |
| Manufacturer | Automatic Switch Company |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A SINGLE THREADED PORTION |
| AASA | THREAD LENGTH | 0.150 INCHES NOMINAL SINGLE THREADED PORTION |
| ABKK | FLANGE DIAMETER | 0.500 INCHES NOMINAL |
| ADAS | BODY INSIDE DIAMETER | 0.250 INCHES NOMINAL |
| AGAV | END ITEM IDENTIFICATION | AUTOMATIC SWITCH CO SOLENOID VALVE MODEL NO. 258 |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | 0.176 INCHES NOMINAL |
| AJRM | UNDER FLANGE HEIGHT | 0.404 INCHES NOMINAL |
| AJSG | SEAT ANGLE IN DEG | 60.000 NOMINAL |
| CQJX | NOMINAL THREAD SIZE | 0.438 INCHES SINGLE THREADED PORTION |
| CQKM | SEATING SURFACE SHAPE | ANGULAR |
| MATT | MATERIAL | STEEL CORROSION RESISTING SEAT |
| STYL | STYLE DESIGNATOR | THREADED FLANGED |
| THSD | THREAD SERIES DESIGNATOR | UNF SINGLE THREADED PORTION |
| Components Related to NSN - 4810-01-222-0257, 4810012220257 | ||||
| 4820-00-768-0509 (4820007680509) | 4820-01-572-6332 (4820015726332) | 4810-01-388-5111 (4810013885111) | 4820-00-001-1674 (4820000011674) | |
| 4820-01-417-3999 (4820014173999) | 4820-00-988-9195 (4820009889195) | 4820-01-651-5916 (4820016515916) | 4810-01-291-5811 (4810012915811) | |
| 4820-01-382-3164 (4820013823164) | 4820-01-070-6082 (4820010706082) | 4820-01-363-1911 (4820013631911) | 4820-01-312-8350 (4820013128350) | |
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