| Item Name | Seat Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-190-5891 (011905891) |
| NCB Code | USA (01) |
| Manufacturer | Hunt Valve Company Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A SINGLE THREADED PORTION |
| AASA | THREAD LENGTH | 0.496 INCHES MINIMUM AND 0.501 INCHES MAXIMUM SINGLE THREADED PORTION |
| ABKK | FLANGE DIAMETER | 4.000 INCHES NOMINAL |
| ADAS | BODY INSIDE DIAMETER | 2.969 INCHES NOMINAL |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | 0.593 INCHES NOMINAL |
| AJRM | UNDER FLANGE HEIGHT | 0.688 INCHES NOMINAL |
| AJSG | SEAT ANGLE IN DEG | 30.000 NOMINAL |
| CMLP | THREAD QUANTITY PER INCH | 12 SINGLE THREADED PORTION |
| CQJX | NOMINAL THREAD SIZE | 3.625 INCHES SINGLE THREADED PORTION |
| CQKM | SEATING SURFACE SHAPE | ANGULAR |
| MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A351/CF8M ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | THREADED FLANGED |
| THSD | THREAD SERIES DESIGNATOR | UN SINGLE THREADED PORTION |
| Components Related to NSN - 4820-01-190-5891, 4820011905891 | ||||
| 4810-20-003-8822 (4810200038822) | 4810-01-014-8016 (4810010148016) | 4810-01-084-1238 (4810010841238) | 4810-01-411-7729 (4810014117729) | |
| 4820-01-408-3745 (4820014083745) | 4820-01-456-9072 (4820014569072) | 4820-01-297-1947 (4820012971947) | 4820-01-135-8329 (4820011358329) | |
| 4820-00-214-6773 (4820002146773) | 4810-01-588-5008 (4810015885008) | 4820-01-538-8242 (4820015388242) | 4820-01-628-7496 (4820016287496) | |
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