AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Seat Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-316-0374 (003160374) |
| NCB Code | USA (00) |
| Manufacturer | Caterpillar Inc, Quantic Industries Inc, Towmotor Corp, Blue Tee Corp, Eaton Aerospace Ltd |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKK | FLANGE DIAMETER | 0.500 INCHES NOMINAL |
| ADAR | BODY OUTSIDE DIAMETER | 0.440 INCHES NOMINAL |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | 0.312 INCHES NOMINAL |
| AJRM | UNDER FLANGE HEIGHT | 0.313 INCHES NOMINAL |
| AJSG | SEAT ANGLE IN DEG | 30.000 NOMINAL |
| CQKM | SEATING SURFACE SHAPE | ANGULAR |
| CQKW | BODY STEPPED INSIDE DIAMETER | 0.062 INCHES NOMINAL SECOND STEP |
| CQKW | BODY STEPPED INSIDE DIAMETER | 0.188 INCHES NOMINAL FIRST STEP |
| MATT | MATERIAL | STEEL OVERALL |
| STYL | STYLE DESIGNATOR | PLAIN FLANGED |
| Relevant Components for NSN - 4820-00-316-0374, 4820003160374 | ||||
| 4810-01-693-0546 (4810016930546) | 4810-01-224-8636 (4810012248636) | 4810-00-181-8826 (4810001818826) | 4810-00-533-2538 (4810005332538) | |
| 4820-01-319-3454 (4820013193454) | 4820-01-154-9733 (4820011549733) | 4810-01-176-9496 (4810011769496) | 4820-01-278-5449 (4820012785449) | |
| 4810-01-152-7681 (4810011527681) | 4810-00-127-2787 (4810001272787) | 4820-00-557-7800 (4820005577800) | 4810-01-469-1460 (4810014691460) | |
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