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) | 00-075-2255 (000752255) |
| NCB Code | USA (00) |
| Manufacturer | Eaton Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKK | FLANGE DIAMETER | 0.371 INCHES MINIMUM AND 0.373 INCHES MAXIMUM |
| ADAR | BODY OUTSIDE DIAMETER | 0.262 INCHES MINIMUM AND 0.264 INCHES MAXIMUM |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | 0.200 INCHES MINIMUM AND 0.202 INCHES MAXIMUM |
| AJRM | UNDER FLANGE HEIGHT | 0.138 INCHES MINIMUM AND 0.143 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 25.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| CQKM | SEATING SURFACE SHAPE | FLAT |
| CQKW | BODY STEPPED INSIDE DIAMETER | 0.094 INCHES MINIMUM SECOND STEP AND 0.095 INCHES MAXIMUM SECOND STEP |
| CQKW | BODY STEPPED INSIDE DIAMETER | 0.125 INCHES NOMINAL FIRST STEP |
| MATT | MATERIAL | STEEL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 CL 416 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | PLAIN FLANGED |
| Relevant Components for NSN - 4820-00-075-2255, 4820000752255 | ||||
| 4820-01-248-5022 (4820012485022) | 4820-01-511-3905 (4820015113905) | 4820-00-108-8528 (4820001088528) | 4820-01-613-0942 (4820016130942) | |
| 4820-00-319-7643 (4820003197643) | 4820-01-577-0941 (4820015770941) | 4820-01-262-2542 (4820012622542) | 4820-01-607-4294 (4820016074294) | |
| 4820-01-148-9327 (4820011489327) | 4820-01-292-9537 (4820012929537) | 4820-01-230-6363 (4820012306363) | 4820-01-151-4016 (4820011514016) | |
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