| Item Name | Disk Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-118-1746 (011181746) |
| NCB Code | USA (01) |
| Manufacturer | Electric Boat Corporation, Huntington Ingalls Incorporated |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 2640-262 | electric boat corporation | disk valve | RFQ |
| 203906 | huntington ingalls incorporated | disk valve | RFQ |
| 203906 PIECE 4 | huntington ingalls incorporated | disk valve | RFQ |
| 2640-262 PIECE 4 | electric boat corporation | disk valve | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AARX | INSIDE DIAMETER | 0.500 INCHES MINIMUM |
| AAZE | SHANK DIAMETER | 0.875 INCHES MAXIMUM |
| ABHE | OUTSIDE DIAMETER | 7.781 INCHES MINIMUM AND 7.797 INCHES MAXIMUM |
| ABKW | OVERALL HEIGHT | 3.562 INCHES NOMINAL |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | 1.781 INCHES NOMINAL |
| AZKQ | TEMP RATING | 225.0 DEG FAHRENHEIT NOMINAL |
| CQJX | NOMINAL THREAD SIZE | 0.750 INCHES |
| CRRB | SEAT ANGLE | 90.0 DEGREES NOMINAL |
| FEAT | SPECIAL FEATURES | W/TWELVE THREADED PULLER HOLES AT TOP |
| MATT | III MATERIAL | NICKEL ALLOY OR NICKEL |
| MEDA | MEDIA FOR WHICH DESIGNED | HYDRAULIC FLUID |
| STYL | STYLE DESIGNATOR | POPPET |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| Relevant Components for NSN - 4820-01-118-1746, 4820011181746 | ||||
| 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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