| Item Name | Valve Check |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-491-2311 (014912311) |
| NCB Code | USA (01) |
| Manufacturer | Aerospace Systems And Components |
| MRC | Criteria | Characteristic |
|---|---|---|
| ADQU | FLOW CONTROL DEVICE | DISK |
| AECS | BOLT HOLE QUANTITY | 8 ALL ENDS |
| AEHZ | MAXIMUM OPERATING TEMP | 300.0 DEG FAHRENHEIT SINGLE RESPONSE |
| AEQJ | MINIMUM OPERATING TEMP | -65.0 DEG FAHRENHEIT |
| AGAV | END ITEM IDENTIFICATION | SH-2G SUPER SEASPRITE HELICOPTER |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| CQGM | MAXIMUM OPERATING PRESSURE | 15.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| CWCD | NOMINAL OUTSIDE DIAMETER | 5.000 INCHES ALL ENDS |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | 0.223 INCHES ALL ENDS |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | 4.625 INCHES ALL ENDS |
| FEAT | SPECIAL FEATURES | DUAL 4-INCH FLAPPER |
| Relevant Components for NSN - 4820-01-491-2311, 4820014912311 | ||||
| 4820-00-405-2314 (4820004052314) | 4820-01-644-7717 (4820016447717) | 4820-00-138-5801 (4820001385801) | 4820-01-478-3615 (4820014783615) | |
| 4810-01-231-9665 (4810012319665) | 4810-01-463-1795 (4810014631795) | 4820-01-270-4213 (4820012704213) | 4820-01-482-5390 (4820014825390) | |
| 4810-01-574-6488 (4810015746488) | 4820-01-375-3688 (4820013753688) | 4810-01-486-6370 (4810014866370) | 4820-01-562-8058 (4820015628058) | |
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