| Item Name | Seat Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-005-7405 (000057405) |
| NCB Code | USA (00) |
| Manufacturer | Grimes Aerospace Company |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKK | FLANGE DIAMETER | 0.496 INCHES MINIMUM AND 0.498 INCHES MAXIMUM |
| ADAR | BODY OUTSIDE DIAMETER | 0.384 INCHES MINIMUM AND 0.388 INCHES MAXIMUM |
| ADAS | BODY INSIDE DIAMETER | 0.125 INCHES NOMINAL |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | 0.153 INCHES MINIMUM AND 0.159 INCHES MAXIMUM |
| AJRM | UNDER FLANGE HEIGHT | 0.405 INCHES MINIMUM AND 0.407 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 25.0 ROCKWELL C MINIMUM OVERALL AND 30.0 ROCKWELL C MAXIMUM OVERALL |
| CQKM | SEATING SURFACE SHAPE | FLAT |
| MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| STYL | STYLE DESIGNATOR | PLAIN FLANGED |
| Relevant Components for NSN - 4820-00-005-7405, 4820000057405 | ||||
| 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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